The fact that no matter who you are, there is something you will enjoy on Playstation. Where xbox is American FPS FTW!!!!. And nintendo is Japanese for the win!!!!!!. Playstation has that global balance. Where they have a lot of variety and the games that aren't FPSs and have had no marketing (Demon's Souls and Heavy Rain) still sell very well. Playstation has been my console of choice since the PS1 and I don't see it changing anytime soon.

They've had big games each gen dude. Plus they constantly innovate and come out with good hardware. Oh and they make new IP's each gen, where as Nintendo first party is still based around series' that started in the 80's. 

PS1 it was Crash Bandicoot, Gran Turismo, Metal Gear, Final Fantasy, etc.

PS2 it was Gran Turismo, Grand Theft Auto, Metal Gear, God of War, Ratchet & Clank, etc.

Now with the PS3 its Uncharted, LittleBigPlanet, Resistance, Killzone, etc.

Not to mention great third party support. 

I would argue Sony has the best first party games, in both quality and quanity. 

Variety, my friend. I don't have loyalty for any particular franchise. I am loyal to PlayStation because of the immense variety all their consoles have shown to have throughout the years. Besides, I play other consoles just fine, my preference simply lies with Sony.

I'm not loyal to a brand. However the PS3 is my favorite console.

I have loyalty to certain people or franchises mostly, mostly.  and people make mistakes. And this loyaltly isn't really that much. Like I'm much more loyal to a friend.

Though 4 franchises are dear. Which Final Fantasy, Deus Ex and Metal Gear and Zelda.

But Kojima Productions I'd rather do non metal gear at the moment. ZOE2 was outstanding. And I like it more than 2 out of the 4 main metal gears.

Deus Ex, Both the franchise, and the creator warren spector. I haven't checked out epic mickey, but hopefully it will have things that please me.

Oddly enough Toriyama and his team. (Makers of FFX, FFX-2,FFXIII and FFXII: Revenant wings) and his games are quirky/linear and I love them. And he is up there as long as he doesn't write the story anymore :(

Nintendo I haven't been as big of fan of since the Gamecube days, but Zelda will always have a special place in my heart whether I like the way the franchise is going or not.

imo, I always wanted a vaio because they were "Sexy" but god I can make my own computer or buy a equivalent gateway for much less. Same applies to mac... ditto with bravias. I had walkmans in the past because it was default thing to get until apple came along.

Sony movies...  if the movies good. I buy what gets good reviews and is cheap :). But I'm not a diehard sony fan.

I started Gaming with the NES and we had almost every Console at home. I always liked Nintendo much better than Sega. Maybe because Sega was mainly porting Arcade games to Home Consoles whereas Nintendo created Games especially for the home consoles. So these games where better suited for home console play whereas those Arcade games where ofter very difficult so that people are putting in more coins.

When I first saw the Playstation I was a loyal Nintendo fan and Zelda and Mario alone were the reasons I wanted a N64. Well after I have played FF7 at a friend I was totally blown away by the depth of the story. Against FF, Resident Evil, Metal Gear Solid the Nintendo Games were simply lacking.

The Playstation 1 was the best console I had seen at this time in my life and I had much more fun with it than with the NES or SNES (although Zelda 3, Super Mario World, Terranigma and Actraiser hold a special place in my heart, FF 4 and 6 were not released in Europe). The Playstation brought gaming for a mature Audience whereas Nintendo wanted to make Games that Mature people and Children can play.

That is the main problem that I have with my Wii. It was the first Console that I bought that felt not superior to the past console generation. Motion Gaming felt like a step back, Wii Sports is just a shallow mini Game Collection. Nintendo is good at creating gameplay, but they are really bad at storytelling or just don't bother at all. There is also only minimal 3rd party support regarding good storybased games.

Ok, I just wanted to point out that I "began" as Nintendo Fan and the Sony Playstation could convince me with mature (and mature doesn't just mean brutal and violent games) storybased games. It had great support from Square, Konami and Capcom and over the years it had a great variety of games.

The PS2 was a huge leap forward and up to now it is my favourite Console, because my favourite games evolved even further, storytelling went up to an even higher level and games like Final Fantasy X or Kingdom Hearts are still amongst the best games I have ever played. But besides the JRPGs, Platformer and Action/Adventures there were Games like Monkey Island 4, Buzz, Katamari etc. The Playstation never had "that one Franchise" that got most of the attention and would make it pretty onesided. It has strong games in very different genres and the Playstation brand always brought up a nice variety in gaming.

The PS3-Generation was a kind of a step back in my opinion. The japanese games were strong as usual but very little games were coming. I realized how little fun I had with most US Games. Online Gaming was growing strong and with the coming of online trophies and after getting Resistance 2, GTA4 and Street Fighter 4 Platinum I had enough of the online experience. Repetition, bad behavior, cheater, glitcher, loads of insults, quitter etc. dominated and most of the time spent online was just a waste. So I decided to never buy a game with online focus again.

The second problem with US games is the focus on nonlinearity. After Playing Games like Oblivion, Infamous or Borderlands or wonder how games with absolutely awful Storytelling, shallow Characters and almost no character development can gain such high ratings. Most of the time you are wandering through large maps doing boring, repetetive and most of the time senseless sidequests that add nothing to the overall story and after you have beaten the game you just keep thinking what the whole game was about.

The Playstation offer a good mix of japanese gaming, european gaming and us gaming. A variety of storytelling, genremix and character interpretation.

to me sony has always meant this to me:

creatitvity, variety, quality and they have always always created new i.p's and moved along, where else can you find such variety like heavy rain, gow iii, uncharted 2, white knight chronicles, eyepet, singstar, infamous 1&2, lbp 1&2, modnation racers etc up to the quality of sony titles, the answer my firends is you cannot find similar games up to the same standards of quality elsewhere

AND NOW THEY HAVE MOVED INTO MOTION GAMING AND MADE THE ULTIMATE MOTION CONTROLLER I am so happy still with move, just look at me expected games and you see most of them have move support lol

Finally I love sony ever since the ps1, back then it was ff, crash bandicoot, resident evil, dino crisis, gt, wipeout, aluNdra, parasite eve, vagrant story, yup i got spoilt on ps1

In my case, my interest for the Playstation brand grew as the console generations went on.

Back then, the original Playstation was just the way to go because I am and always have been a fan of Final Fantasy and other Square-Enix games.  If Square-Soft back then had stayed with Nintendo, history would probably have been very different for me.  

But as I bought my console primarily for FF VII and subsequent entries in the series, I got into many other games that made my choice just this much more worthwhile. Games like Metal Gear Solid, Resident Evil, Gran Turismo, Vagrant Story, Twisted Metal 2, Parasite Eve, Final Fantasy Tactics, Bushido Blade, Tobal no. 1, Legend of Mana, Chrono Cross, the Tekken series, Castlevania Symphony of the Night, Crash Bandicoot...

Now, as I mention all these games, one realises that there is hardly any Sony first party games in there (bar Twisted Metal 2 and Gran Turismo).  For that generation of gaming, Sony was responsible for securing most of the games I was interested in, hardly for producing them.  

I still enjoyed the other 2 systems.  But for much fewer games than what was available on the PSX (Zelda and Mario series, Starfox 64, Panzer Dragoon, Virtua Fighter, Guardian Heroes, Sonic...).  The PSX library of games I was interested in was expanding at an incredible rate and I had problems keeping up, which can't be said of the other two.

The same exact scenario happened with the PS2.  With Sony securing exclusivity for the FF series, as well as Dragon Quest, Metal Gear Solid and many others.  Except this time, Sony became a bit more active and produced a few gems that made it on my all time favorites list:  Ico, Shadow of the Collossus, and God of War I-II, along with the Gran Turismo series that I already cherished since the original Playstation.  I started to think that Sony, despite having produced a game in one of my favorite genre of the time (RPG) that felt sub-par compared to what I was used from the likes of Square-Soft and Enix (Legend of the Dragoon), could wow me in ways only the best developers had done so far.  My interest in their first party studios started to rise.  

Come the PS3 era.  At first, I didn't jump in right away.  I judged the system too expensive compared to the competition.  Now, I understood the tech that was in there and wasn't complaining about the price.  It just wasn't for me at the time since I didn't have an HD TV, and let's be honest here, the first year's worth of games was seriously suffering from anemia.  I still needed a console!  My PS2 and Gamecube were starting to get fewer and fewer interesting games.  Just about everyone in my family had bought a Wii, so I could get into the new motion control craze almost at will.  Having always been in love with eye candy stuff (I liek teh Beautiez!!) and since the system had already 2 games I just HAD to play (Lost Odyssey and Mass Effect) I [obviously] went for the 360.

The system hooked me for a full year, made me buy a HDTV, and provided me with some of the best games I've played this gen, namely Fable 2, Mass Effect, Lost Odyssey, Bioshock, PGR4 and GTA IV.  But as time went by, I started to take notice of the PS3.  Metal Gear Solid 4 was already in my shelf, although I didn't have yet a PS3, and there was Uncharted that looked really intriguing.  Final Fantasy XIII was still an exclusive and I wasn't gonna miss it.  The 360 was also annoying me with it's pay to play online policy, and I knew the PS3 would let me try the online components from games for no fee. That I wouldn't have to worry of wasting money on something I may not like in the end (I had never been an online gamer at this point in time).

Couple these factors to the fact that I now had a good PC, and that the games that I was looking for on the 360 were also coming out for the PC (Bioshock 2 and Mass Effect 2) or that most other games were ending up being multi-platform and coming out also for the PS3... I started to see less and less value in my 360.  I knew there were still gonna be more exclusive games that I would like, but the console would (and did) end up being just like the N64, Saturn and Gamecube from the last generations.  Gathering dust in between must own exclusives.

As the generation went on, I started to realize that among all those Multi-platform games, Sony was seriously taking the matter in their own hands.  Releasing AAA games after AAA games.  The flow of first party games was steady and of a quality that in my book now rivaled those from Nintendo.  Games like Uncharted, inFamous, Killzone 2, Little Big Planet, Ratchet and Clank Future, Flower, God of War 3, and the ever coming-one-day-eventually-maybe-perhaps-this-year GT5.  When you you add the other exclusives like 3D Dot Game Heroes, Valkyria Chronicles, Metal Gear Solid 4, Heavy Rain and the ones coming like Final Fantasy Versus XIII, Journey and that other Quantic Dreams games (among plenty I forget, I'm sure), you get a steady flow of unique games that keep me occupied like no other consoles I own.

Finally, the PS3 is the console that made me become a fan of Sony as a first party developer.  This is the gen that make me say that they now rival the near flawless quality of Nintendo's games.  Do I prefer Sony to Nintendo?  No. But in my book, they're now equals.  I await the next Uncharted and inFamous games just as much as I do the next Zelda, Mario or Metroid.  Three of my most beloved series since the original NES!

Tldr version: In a nutshell, while I'm still a huge fan of Nintendo, and Microsoft's Lionheads, Sony is bringing me by themselves more content that interest me than the other two.  They also tend to wow me with the so appreciated eye candy more than anyone else on the market right now.  So the reason isn't that they're better per-se, just that they cater more to my interests than the others do.

PS: Sorry for the huge wall of text.  I just went on and it flowed like that.  X_x 

do you live near a WINd factory? because you have blown me away!!! lol(yes....I know that was lame)

exactly wht cgi said, why adjacent agrees and more. when you fail me i leave you. Sony this gen alone has made an (at the very lease 1) IP or new IP in nearly every genre, and in my opinion there all good.

im sure there missing something but if it where important it would be on the other consoles.