I don't think so at all:
1) I've heard quite a few complaints about lag in bf:bc2 and sometimes i get a lot in the beta, the first game was infamous for sometimes being unplayable
2) Im beginning to dislike the sniper rifles as if you body shoot a person, theyll be left with about 2 percent health, so they can get away by the time you have reloaded!
3) MW2 is an almost completely different game aswell! MW2 is all about speed and reflex, BF is more about the tactical side of things, with much larger maps etc
I actually really enjoyed the first game's online (BF) and becasue of the behicles and tactics you could use, I thought at times it hit even greater heights than cod4. Im not sure how this one can compare to MW2, as the finished product is not even out.