Replay Value
There really is not a lot to Warfighter; most experienced FPS players can blast through the campaign in about 5 hours, and the multiplayer is glitchy enough that you probably won't play it much after giving it a cursory go. As such, it's probably a game best regarded as a rental; rinse the single player and a few hours online, then there's really not much to come back for. Black Ops 2, however, has a thrilling - if also short - campaign that, for once, actually offers incentives to play through it again; the branching story and multiple endings prove enticing given how involving the story is. Multiplayer, meanwhile, can easily eat up tens of hours of your life, with getting to Prestige 10 taking roughly 180 hours. On top of this, Treyarch have also thrown zombie modes Transit and Grief into the mix, ensuring that the game will keep you glued to your console/PC over the holiday period. In case you hadn't guessed, this one's an easy win for Black Ops 2.
WINNER: Black Ops 2