My PS3 is for Warhawk, DMC4, Heavenly Sword, MGS4, FFXIII, White Knight Story, and Haze.  Ratchet and Clank: Size Matters was fun, but I don't know if I'll enjoy the Tools of Destruction.  Everything else I get for my 360 because of a better ability to chat with friends and the XMB (music in-game, chatting in-game), and the addition of achievement points.  I may get DMC4 for 360 one day, but doubt it because it just doesn't feel good using the 360 controls on the PS2-originating game.