I'm glad this game is beating MW2's sales record. Quite frankly, I thought MW2 sucked... I mean it has cool guns and stuff, but it was so horribly unbalanced and don't get me started on the boosters. I think Treyarch does a far better job at making COD games than Infinity Ward. Plus the Treyarch COD games are the ones that have Zombies, and that's a major plus... the Treyarch COD games are also much darker and bloodier/gorier in general, and that better represents what war is really about. So all around I'm more of a Treyarch fan. I think they're the ones with the real talent.
Oh yeah, it also needs to be mentioned that Treyarch does the best job they can to make the Wii versions of their games be as good as the ones on other consoles. That is a fact which can not be said about Infinity Ward... Did MW2 even come to the Wii at all? No, it did not. What we got was a crappy repackaging of MW1 with crappy controls. Now in contrast to that the Wii got ON DAY 1 pretty much the EXACT SAME Black Ops experience as the 360/PS3 did, and this game is not really lacking in anything except for the forgivable things which could not have been included because of hardware limits (Killcams, 12-18 players, etc.)
So if Infinity Ward gets shut down or whatever, that's fine with me because thank God we have Treyarch!