Halo 4 all the way I own both but I've never been to big of a fan of any COD game except MW2. I've been a halo fan from the start so I guess naturally I'm going to side with halo. I haven't played to much of the new BO2 so my opinion doesn't count yet. Will be giving it an honest try in the next week or so.
Both of them are rubbish. If u wanna play Game you must to play Super MARIO hehe fun My game is Mafia1234567890 whatever
I've never played Halo 4 so I can really reach a conclusion until I do. Black ops 2 is really fun though.