Let me just point out the fact that PS3 has the most variety and quality of games in my opion.
Games by genre:
FPS: Resistance, Killzone, MAG, SOCOM
Platformer: Ratchet and Clank, LittleBigPlanet
Racing: GT5, MotorStorm, ModNation Racers
Story: Heavy Rain, The Last Guardian
Adventure: Uncharted, MGS 4.
So your telling me that PS3 has no games? Really? Looking at this it has variety across all genres and a good quality of games.
(These games are ones I could think of off the top of my head, there may be more.)