It's all subjective.  This thread is about what systems (and games) you personally like.  The games I normally buy a Playstation for were just not fun on PS4, for the most part, and so I was personally very disappointed.  Dark Souls 3 and Spider-Man were the only games I really liked that resembled previous games that I also liked.  On the other hand Final Fantasy, Bloodborne, Kingdom Hearts, and The Last Guardian are the types of games that I normally like, but I felt these games suck now.  Also any game that is multiplat with the Switch, I'm just going to buy on the Switch instead.  Portable + cartridge is just much better than a disk-based, home only system that has slightly better graphics.  (I really don't care about the graphical difference at all.)

On top of that, the PS4 lacked any real innovative games.  In every previous generation I've found new games that I actually liked that were brand new IP.  PS4 didn't have any of that.  And really I look for new games that are fun even more than the sequels to games I already like.  The best selling game on the PS4 is actually a PS3 game.  That kind of sums up my feelings on the PS4 right there.  Not innovative.  VR doesn't count.  VR sucks.  Where are the fun new games that don't need VR?

In an objective sense, it's easy to show that the other 4 systems were disappointments compared to their Generation 7 counterparts.  This left the PS4 without any decent competition.  It won by default, but I don't really think it's that great of a system either.

The Nintendo Switch by far. 

I have kind of a weird relationship with the system, though. I definitely think a lot of the exclusives it offers kind of ... missed the mark. Fell a bit short, if you will. Stuff like Mario Odyssey or Astral Chain, while still really good, had a few areas that were grating to me. I want to see sequels for sure, but mostly to perfect the formulas of said games. I also didn't really like Splatoon 2 (almost to the point of flat out disliking it), was underwhelmed with what I played of the limited-time free edition of Tennis Aces (not that it affects me too much), was underwhelmed with Mario + Rabbids, was mostly positive with Xenoblade 2 but with a lot of baggage holding that game down, and wasn't really left with much of an impression one way or another in regards to Arms. Basically - 2017 and 2018 were an odd mixture of a year with a lot of really beloved games that didn't do much for me, and a year front-loaded with smaller titles that didn't even look interesting enough to buy. Furthermore, a lot of the flagship Nintendo games would come out, and I'd be really into them for the first week or two, maybe even the first month, and then just sort of drop them. Which, I guess is normal lifecycle for most games, but it's not really what I expect from a truly amazing title, let alone a Nintendo game. Especially because I'm talking about games that aren't story-centric and super linear. I'm still not left with much of a reason to want to go back to Smash or Animal Crossing, despite really liking the gameplay of the former, and finding the concept of the latter very attractive. 

However, I can't deny that Mario Maker 2 is one of my favorite games ever and a great exclusive. Xenoblade HD too, even if that's a remaster. Breath of the Wild would probably be up there, if I ever replayed it up to where I left off and eventually finished it. And the little bit I've played of Origami King and Luigi's Mansion 3 means those titles could get up there too, possibly not best ever material but still possible 9/10s. While not one of the greatest experiences ever or anything, Link's Awakening is also quite great. 

It does kind of suck that a lot of the games I really love from the system are ports/remasters/remakes, but I'm much, much more positive on this aspect than I used to be. Early on with the system it felt like a lot of the times I was buying ports because I didn't have a lot to play so I was randomly trying out stuff that didn't look too interesting at first glance. Now though, a lot of the ports are games that are legitimately super interesting, a lot of ports are super high quality and push the system, and with a lot of already great games on the system, I don't have much reason to choose a different ecosystem for a lot of regular ports. Or even better, a lot of releases are now multiplatform day-one releases (sometimes even a "console" exclusive to the Switch). Plus coincidentally, I think a lot of the remasters and indies that have interested me on the Switch just so happened to come around after the system was already big, so they ended up releasing same-day on Switch as other systems, or around the same time. 

Overall, I'm very positive on the system and I'm looking forward to the upcoming exclusives. Ironically, I'm already very satisfied with the third party multiplatform library (even if I want some more stuff like ... more Ace Attorney collections! Or Silksong 2! Or Touhou Luna Nights! But after that I'd be content). 

As much as I love the Switch, I do kinda wish it had more original games as opposed to so much of its library being old ports. Still, since I don't own a PS4 or Xbox One, I'm okay with ports of games from those systems like Doom 2016, Hellblade, Wolfenstein II, and Witcher 3, which I really enjoy and would otherwise miss out on.

I'd say Switch this gen. I have an XB One that I play quite a bit but like 80% of that these days is just Overwatch. Last gen I'd probably give the edge to Xbox 360 over Wii (although Wii had it when it came to local multi) but this gen Switch just has too many good games. Could do with some more new/exclusive AA and AAA type stuff but overall solid library and system.

people just gonna pick what they have

Doesn't matter if you ask this question in 1999, 2010 or in 2020 the answer will always be the same. The PC is the best current system.

That there system that literally makes everyone's games, and everyone's consoles.

If I had to choose between PS4 and Xbox One it'd be a tough call.

Obviously PS4 has more exclusives, but as I don't have a gaming PC, stuff like Gears 5 would still be effectively exclusive to me. I also prefer the Xbox controller. Now that games like Witcher 3, Doom, Hellblade, etc are on Switch about the only games they have that I wanna play really badly are RE7 and Crash 4, and the latter might still come to Switch, while I could play RE7 on either. (And will most likely end up playing it on Series X)

Yes that's true but many of us have more than one system so it's interesting to know which one comes up on top.

For me it's definitely the Nintendo Switch.

It has revived my passion for gaming in a way I couldn't even imagine. I had a PS4 and Xbox One this gen. I sold my PS4 2017 to my brother and bought a Switch at launch instead and what should I say. Gone were the days of gigantic updates every time I boot up the system. I found a new passion for indies, especially Super Giant Games and even realized that I hate achievements and trophies. So I finally turned off these notifications on my Xbox and even had more fun on that console once again. But I'm also curious for games I missed since then on Playstation. Games like Ghost of Tsushima or Horizon Zero Dawn. Because of this I pre ordered a PS5 recently.