[allegient]

mw2 just because there were so much bullshit to mess around with

[zzzzzzzzzzz]

MW2 was the first one for me.

[rubens]

BO1 or BO2 both have the funniest and enjoyable gameplay

[Trillnobandz]

Cod 4 no debate

[archinerate]

Cod 2 was the og

[Wordstar]

Je pense mw2

[Mightyb18]

World at war for me

Modern warfare 2 hands down

[bulhaa123]

COD 4 or mw3 of course

[Pollor909]

I most like cod 1 witch dlc and world at war

[James Matthew]

i'm thinking of switching.

[jezmate07]

MW2 for me, started losing interest by 2 or 3 games later

[acehood]

i'm going to go with MW3

[nopester22]

COD4. So many mods and game modes on the custom servers

[Wisewordx]

Bo1 had the most complex campaign from cod.bo2 for the multiplayer.

[Bringbranger22]

I'd say black ops one.
The single player is great and the multiplayer when it was alive was so much fun.