i would recommend PS3, just because it has a huge amount of exclusives with a lot of variety on them. for example:
Blazblue CP, Aquapazza (Fighting games)
Valkyria Chronicles, Disgaea, The world God only Knows (SRPG)
Demons Souls (ARPG)
Metal Gear Solid (Stealth)
Uncharted (Action and Adventure)
God of War (Hack n Slash)
The Last of Us (Action/Survival Horror)
Killzone or Resistance (FPS)
Infamous (Superhero Adventure Game)
Gran Turismo (Driving Simulator)
Twisted Metal (Car Battle)
Motor Storm (Arcade Racer)
Rachet and Clank (Platformer)
Drakengard (Hack and Slash with a mix of a JRPG)
The Tales games (Xillia, Graces F, Zestiria,), Nino Kuni, Fairy Fencer, etc (JRPGS)
Plus HD Collections of great PS2 games that you might have missed like Zone of the Enders, MGS, Kingdom Hearts, Jack and Daxter, Ico and Shadow of the Collosus.
and i didn't even got close to naming them all, there is a TON of exclusives for the PS3 with genres that i probably didn't even mention before, also take into account this other things:
- Free online
- PS PLUS (if you decide to get it) gives you good free games every month with discounts on PSN
- a Bluray player.
- and most importantly the PS3 is still being supported by Sony with a bunch of good games incoming, like Persona 5, Kingdom Hearts 2.5 remix, Neptunia V2, Tales of Xillia 2 and Zestiria etc.
