Might as well put it out there since everyone's thinking it already.
Actually until the recent flood of CoD games I really didn't have any problem with the series. I rather liked CoD 2, but screw all the Modern Warfare games.
I've played the hell out of CoD 4 and am on Black Ops all the time. I'm glad a lot more games exist than CoD, but haters probably suck more than my .05 K/D ratio.