Pretty straightforward question. Basically, out of all Call of Duty games (Call of Duty 1, Call of Duty 2, CoD2 Big Red One, etc. etc.), which is the one you prefer? Personally, I enjoy Call of Duty 4 more than the other CoD games, simply because it just feels more balanced in terms of weapons over the other games, though the first three games' balance wasn't too bad. Black Ops' weapon balance also wasn't that bad compared to a few other games (*coughMW3cough*) even with FAMAS w/Suppressor Ghost Pro classes running around.
So, out of every Call of Duty game, which is the one you like the most? Be sure to give details on why in your answer!
PS: Not bashing on MW3 :P