Multiplayer. While it can be good fun, it only is up until lag or you find one of those guys. (insert disliked player type.)
I'd prefer a good solid single player experience, with length and new game plus. And maybe some co-op on the side 'cause co-op is awesome, if it doesn't detract from the game or series. (I'd say the Co-op missions in Dead Space 3 were the best parts, though, I don't know if story and campaign suffered because of it's inclusion.)
But don't do a Fear 3. Where the game is build around co-op but doesn't change a thing for single-player.
I'd prefer a good solid single player experience, with length and new game plus. And maybe some co-op on the side 'cause co-op is awesome, if it doesn't detract from the game or series. (I'd say the Co-op missions in Dead Space 3 were the best parts, though, I don't know if story and campaign suffered because of it's inclusion.)
But don't do a Fear 3. Where the game is build around co-op but doesn't change a thing for single-player.