My opinion: I'm going to be frank here, MW2 sucked, it gave the kids who were god awful the potential to be good, the game no longer required any skill, with perks like commando and danger close, I generally found myself stuck browsing through lobbies looking for a legit groups of players. The guns were way OP, Tar 21 with Stopping Power was honestly, a fully automatic sniper rifle. I miss the days with three set kill streaks and not having to contain my anger after being Modeled from 20 yards away.
But from what I've heard Black Ops is going to be taking care of the bullshit that I'm sick of... Anyway enough with my opinion, let's hear yours...