MW1 is my favourite
My K/D for black ops 2 is laughably low at .76 but to be fare that's after 2 bad matches it was 1.11 or something

COD BO was my favourite. It was the most balanced COD game ive ever played.

K/D 1.9 (PSN) 2.51 (Xbox 360)

I played on the Ps3 first which I practised in. I switched to 360 later on. I must say, the skill in of 360 COD players are higher than in Psn.

I have to say unlike most who prefer MW2, I actually prefer the latest offering, Blops 2. Maybe it's just because I've played it online the most or all the new features, but I can safely say this is the Call of Duty game I've enjoyed the most. Don't get me wrong, I loved COD4 and MW2 as much as the next guy, it's just I never really got into the online in those games, and the few times I tried, I got annhilated so it was tough to appreciate those games on the same level. Although I will say COD4 wins in the campaign mode.

K/D ratio? Not so hot.. I'm very much a run and gun type of player. I need to get right into the action, and as quickly as possible. And these techniques usually leads to you getting killed frequently. I don't do much of that camping or sniper business, I'm far too ADD. My K/D ratio for the Black Ops games stands as:

Blops 1: 1.2

Blops 2: 0.86 (started off very low as I was trying out different weapons and didn't have all my unlockables, but it's been at a steady increase ever since. Goal is to get over one, like the first Blops)

Don't remember my MW2 ratio but I'm guessing it was ugly. Never got MW3 based off how dissapointed my cousin said he was with it.

My fav CoD is CoD2 for PC
I only like WWII CoD s

(all360)

KD 1.18 black ops 2
MW3 0.98
black ops 1.11

Single player: MW>>>MW2>Blackops 2>black ops>Call of duty 1>MW3
Multiplayer: Black ops>Black ops 2>MW2>MW3>MW

Would post my emblem but its all fucked up on pc for some reason. 

CoD4 (2.11 K/D 44% accuracy)

MW2 (2.41 K/D 33% Accuracy)

Black Ops (2.04 K/D 31% accuracy)

MW3 (1.94 k/D 24% accuracy)

I never wanted 2 play Black ops until I played Black ops 2, im hooked on the multiplayer so much fun!

Mine is Black Ops 1,
CoD 4- 2.10
WaW- 1.50
MW2- 2.50
Black Ops- 2.35
MW3- 2.95
Black Ops 2- 2. 63 (will become higher)