MW2 was a game where the right lobby with zero commando and OMA users would lead to really fast paced games and the best experiences of any CoD title.
Black ops played super smooth, provided you set your search preference to locale only. In addition, even though it was a FAMAS-fest, every death you got, you were outplayed, and you could accept those deaths.
MW3's maps alone make it the worst CoD to date. Fixing the netcode to MW2 levels won't do a damn thing to fix it. The terrible map and objective layouts, which are essentially set in stone and cannot be altered, make it such that they can't even alter the spawns properly.
BO2 is tantalizingly good. Like, it has oodles of potential, but someone must fix the damn netcoding and nerf quickscoping. Once that happens, the game WILL be awesome.
The board is not a hivemind. Regardless, it's perfectly acceptable to turn around and like the previous game after hating it. Why? This is why.
Say you're an office worker. Aside from some fun with co-workers it can be very irritating and unenjoyable at times. Then you get fired and get stuck being a gas station janitor wiping peoples crap off bathroom stalls. Amazingly enough you start to appreciate what you had.
CoD has started to get worse since Blops. So people will look back fondly on the better games in the series and realize it wasn't so bad.
Of course I'm the type of kid that hates mainstream crap so that's where I'm coming from - "slipknotrox765" DmC get hype.