There is a power shift in the NBA. If it was originally in the west, guess where it is going?
Away from the team he is currently on.
New Jersey, New York, and Chicago are all nice options, but in a crowded Eastern Conference, Anthony would be behind the similar roadblocks he has been since coming into the league in 2003.
The rich creamies still have Chauncey Billups, Nene, J.R. Smith, and Ty Lawson. Add in complimentary players like Chris Andersen, Arron Afflalo, and Al Harrington, and this team is not bad in a conference that lost a lot of talent. Age and injuries happen, and sometimes too often with this team, but the same can happen to any other team.
If Denver can convince Anthony to stay around for three years, keep a good veteran core, and get the youngsters every franchise desires, and this team would stop middling in the 4-7 seed area, and be a top 3 seed, with only the Lakers and Thunder as legit contenders to represent the West.
With all of this talk about leaving and winning, Carmelo Anthony needs to look around him and smell the roses (despite the lack of oxygen in those mountains) and appreciate what he has with the only franchise he has ever known.