i have world in conflict and crysis.
crysis has a much better story line and offers a lot of game play hours.
world in conflict IMHO seemed repetitive. ie. overwhelming enemy forces kicking your butt to the edge of the map, then all of the sudden you get reinforcements to help you beat them at the last minute... the game, though fun, seems to follow that routine every other level.
after beating world in conflict once through... i uninstalled it and shelved it.
after beating crysis once through i started over until i had beat it three times