I've got a PS3, but I rarely play it, I played the shit out of 1 and 2 but never played Snake Eater. I want to play it before I play MGS4, and I want to play that before I buy the one that's coming out for Xbox soon!
Dragon Age 2, Deus Ex: Human Revolution, Elder Scrolls V: Skyrim (sequel to Oblivion), Mass Effect 3 (possibly out this year), also dunno if anyones ever played the Total War series but the new one which is a remake looks fuckin' unbelievable.