What games are you interested in? I think there might be MORE than just 2 or 3 that you may want. Titles you might have overlooked include
isc Based Games:
1. Uncharted: Drake's Fortune - Please buy this game, as opposed to renting it. I think its at a bargain price at most places. Its probably twice as much to buy it than it is to rent it. Its well worth every penny, and you'll be supporting the developers.
2. Metal Gear Solid 4: Guns of the Patriots- There are no words, just absolute awesome.
3. Little Big Planet- It may not be your cup of tea, but it is the perfect multiplayer game with friends. The moment you get it and play with your buddies, you will not stop laughing. Plus the levels are constantly updated, check this out: http://www.youtube.com/watch?v=qNPBdKQBYHg. I believe the game might be dirt cheap now at retail.
4. Valkyria Chronicles - As Gaf says "Genre Defining Gameplay meets Art"
1. Resistance 1 / 2 - This is a very iffy reccomendation, you'll end up falling for atleast one of the games. I'll say that much. Also, if you want to play co-op make sure to start a thread, Jo21, Makingmusic and some of us will join up with 8 player co-op R2 :D.
2. Demon's Soul - this game is absolutely fucking hard, but its pretty much the Japanese Oblivion, only.... BETTER.
3. Ratchet and Clank Future: Tools of Destruction - Third Person Action Adventure games are a rare breed, this game does it all, beautiful graphics, great story, RPG leveling up system. Its definetely worth buying to support the devs. Its also dirt cheap.
4. naruto: Ultimate Storm - Best looking Anime fighter? Check.
Here is a list of games off the Store you should definetely download. I highly suggest sharing an account with someone because you can than download multiple games and share. EVERY GAME I am listing is ABSOLUTELY GREAT. I am VERY UPSET with the community, for not once mentioning Pixel Junk Eden, Wipeout HD, or Ragdoll Kung Fu. I'll expand upon why I think each game is worth your time:
1. Pixel Junk Eden- This game is living, breathing, art. Thats all I can say. MORE PEOPLE SHOULD BUY THIS GAME.
2. WARHAWK!!!!222!!! - probably the best third person multiplayer, all scale, shooter I have played this gen. This game has a great online community, that is very consistent with it. Its a little pricey at 29.99, but its very much worth it if you are looking for a new multiplayer game.
3. RAGDOLL Kung Fu - This game is like Brawl, only it has better graphics. IT IS 9.99. It does not have online due to the technicalities of its physics engine, but if you have friends over, this will be the best 9.99 you ever spent.
4. FAT Princess- 32 Player. Multi Class. Multiplayer. Mayhem. This is in beta stages right now, keep an eye out for a key.
4. Wipeout HD - I am really disappointed no one mentioned this. This game has absolutely everything going for it. Beautiful graphics, insane speeds, amazing techno soundtrack, and its made by Sony Liverpool to boot! This is penultimate online PS3 futuristic racer.
1. Super Stardust HD- Fast, frenic, online shooter in the vein of Geometry Wars but slightly better IMO.
2. FLOW / FLOWer- Read about Eden :).
3. Everyday Shooter- If you like quirky, beautiful, action shooters with amazing graphics and old school gameplay, this is definetely the one for you.
4. Ratchet: Quest for Booty - This requires zero explanation, if you ilke R&C, you will like this.
1. Pixel Junk Monsters- Tower Defense? If thats your thing, pick this up.
2. The Last Guy - Amazing arcade like gameplay, over the top, zombie game.
Worth getting, but not exclusive-
1. Burnout Paradise- its a psn exclusive. So no more discs :D.