They are both good games In their particular genres, so It comes down to story, halo focuses on epic battles, Gears on gritty scrambled survival, both good, as for characters, eh, I like Baird and Cole, I like Forge and Johnson, both have some good, both have some bland, now finally it's down to mythos, and Halo just has more possibilities as It has a much larger, farther spanning backround. So while Gears can only go right or a little left, Halo can jump around. So Halo. Also I love Spartans and space warfare.