Breaking this out from an earlier thread--the consensus seemed to be that the top team of the decade was either the Pats or the Lakers. For purposes of this argument, we're talking about the four major leagues in the U.S. (I guess hockey still qualifies, but no NHL team is worthy of putting in the poll. I also don't think the Yankees or Red Sox distinguished themselves enough.) After some back and forth in the other thread, it seems the most correct thing to do is analyze the Lakers from 1999-2000 to 2008-2009, and the Pats from 2000-2001 to 2009-2010. So the Lakers have won 4 titles to the Pats 3 (so far). If that ends the conversation for you, the idea of "greatest" is sort of pointless--just ask who won the most titles. I give the nod to the Pats because of the 3 titles (so far), the perfect regular season, and a superior regular season winning percentage, .706 to .646. There are intangibles that go in the Pats' favor too, but that'll work for now.