Has to be cod5 or black ops 1

My favorite "Call Of Duty" is Modern Warfare 2 (MW2).

I'd have to say Black Ops 2, some people seem to hate it but I really like it

MW2 is still the best and never will be beat

It's between CoD 4 and MW2. Only reason MW2 is kinda tied is because you can get nukes..

Both games have/had modding issues. Seems like now every CoD 4 lobby you go to is modded.

But before the modding i have to go with CoD4. Just juggernaut was pretty annoying..

Three way tie:

First was in my opinion: World at War, loved that game.

Second: COD4

Third: MW2

My favorite game from Call of Duty series was:
1) CoD 2
2) CoD World at War
3) CoD Modern Warfare
4) CoD 1 + United Offensive

CoD1 (CoD Classic) was quite fun, I didn't play much of it but it was a classic FPS game. CoD2 was so amazing, it was fun and something completely new! The campaign was a bit buggy and annoying but online was really fun! I never played CoD3 because I was told it was terrible. CoD4 is the best online! I'd say WaW was one of the best campaigns plus it started off zombies! You can't beat the classics, MW2 used to be amazing, especially when played with friends or competitively - but it's lost its touch now. BO1 there were so many problems and the campaign and zombies good but overall it wasn't that smooth to play. MW3 had great features and a great campaign but it got overrun by snotty little kids. BO2 is one of my favourites, I like the weapon progression in this one and the emblems are a lot better! I'm also very fond of League Play seeing as I play MLG a lot. The campaign was amazing and I love zombies when I have 3 other good players to play with.

My first choice is CoD 4 because I think itwas the most advanced FPS of its time and basically all other CoDs are based off it and only have better graphics and even worse multiplayer.