What's the best fairing game in your opinion?
Would it be some huge title like Halo, Mass Effect, Space Marines, maybe even Dead Space! Or would it be some lesser known game that isn't all that mainstream?

Mine would probably be Mass Effect due to the sheer size of the universe in that game, not to mention the story and all the stuff that can possibly happen if you miss doing one part of the game, like you'd screw up completely. Not to mention Commander Shepard is literally best human. Dead Space is a close up afterwards, simply due to the fact Humans are on the brink of extinction again by Space body hijackers with sharp claws and deadly appearances.