Ranked in order of which I like best. Top ones are my favorites, bottom are least favorite. Call of Duty: Modern Warfare 2 Call of Duty Call of Duty 4: Modern Warfare Call of Duty: Black Ops Call of Duty 2 Call of Duty 3 Call of Duty: World at War Modern Warfare 2 is just an amazing game, I still play it today instead of Black Ops. I love the leveling and unlocks system and find it so much more entertaining than the CoD Points currency marketplace system they use now. As you can probably tell by these rankings, I generally prefer Infinity Ward over Treyarch (though Black Ops was OKAY). I've never liked Treyarch as much ever since I first played Call of Duty 3. The controls never feel as comfortable to me, the multiplayer has generally sagged, etc.