Bioshock

[Supafly345]

As far as fun factor goes, the 360 they really encouraged you to explore every part of the game with the achievments. The average xbox player is much more likely to get all the research photographs, get every plasmid, find all the diaries, upgrade all the weapons ect. Most of them you don't really want until you have them (eventually being able to club a Bouncer to death without dying or even healing if you have the right equips). Not only does it sorta throw the 360 player into appreciating every last bit that this game has to offer, it also has something for them to work towards, which always seems to make a game more fun if you have something to show for it.

The game is hugely textured and has lots of things to play with, and the 360 players most likely got to play with them all more than PC gamers.