COD 4 - absolutely fantastic, simple yet revolutionary
WAW - liked the zombies, never played the campaign or multiplayer
MW2 - absolutely fantastic...haha (love me a good noob tube)
Black Ops 1 - absolutely fantastic. one of the best stories in video games period, multiplayer was good once they sorted out the shit connections, zombies was very fun
MW3 - pretty fun and I played it quite bit, could've been better
Black Ops 2 - one of my favorite games of all time. Absolutely everything is perfect about it. The campaign is amazing, the multiplayer is super fun and balanced, I personally enjoyed every zombies map (even Tranzit), and the game's presentation in general is A+.
COD Ghosts - i loved it despite what everybody says. Infinity Ward captured the depressing atmosphere very well. The base maps killed this game though.
Advanced Warfare - got bored of it after a month. campaign was decent.
Black Ops 3 - sold the game after a couple months. Campaign was ABSOLUTELY HORRIBLE, multiplayer tried to become a hero shooter and catered to shit players, zombies was shit too (/r/CODZombies overrates BO3 zombies so much)
Infinite Warfare - never played but heard good things about the campaign. Multiplayer still looked like shit though.
WWII - got bored of it after a month. Campaign was boring, multiplayer was boring, zombies was boring. Straight up boring game.
Black Ops 4 - by far the most absolute trash COD of all time. only bought it because they said League Play would be returning (which never released until long after I stopped playing). There was no campaign, the multiplayer literally took no skill, the zombies was hot garbage and Blackout is just fucking boring.