You keep saying 360 is better because it has more games,, they say ps3 is because it has the same and better exclusives. Quality>Quantity
But that's entirely opinion based. I don't like MGS or Ratchet and Clank, but I do like Crackdown, Halo, and Chromehounds. Also, I prefer the games on the 360 Arcade, like Worms, DOOM, DOOM II, Wolf3D, Duke3D, and Perfect Dark, for instance. Plus, the avatar thing is pretty neat, I've got the marine armor from DOOM II (unlockable), and Kingdom for Keflings is a fun arcade game.
In summary: Shut the forget up one is not better than the other it's all based on preference it's like trying to argue why a lime is better than a lemon sweet loving christ.