Why such a huge gap in quality between Playstation and Xbox exclusives?

[Mr_No]

VanceIX said:
Xbox doesn't have much variety. The target audience of Xbox is perfectly content with shooters like Halo and the occasional Fable or Forza, so Microsoft has almost no need to expand IPs, as disappointing as that is.

Don't forget about Left 4 Dead and Dead Rising. They love their zombie games.