well I suppose I'm kind of biased, as well as Dscigs when judging CoD's. I judge a CoD game based on the competitive scene. In that aspect, MW3 was shit, Ghosts was shit, Blops 2 was great. Considering SledgeHammer has commented about AW saying that they have tried to make AW more like Bo2 and less like Ghosts. You can see this in the class system and the gamemodes.
While Dscigs judges CoD's (I assume) based on the snipers/sniping community.
I assume you play public matches a lot, Leaf, which I could understand why you could have a fun time with Ghosts. People usually aren't just pre-aiming with vectors in pubs.