Carmelo: Great player, or underachiever?

Carmelo Anthony, or "Melo" has always been a great scorer in the NBA.  For seven years, he's been the best player on a talented Denver Nuggets team.  For seven years, he has scored at will and carried the Nuggets to the playoffs.  And for seven years, he has been overrated and has underachieved.  Lets be honest folks.  We all witnessed that infamous 2003 NBA Draft that brought us Lebron James, Dwyane Wade, Chris Bosh, and yes, Carmelo Anthony.  Looking back now, what can we say about them?  Lebron James was crowned king and made the Cavaliers relevant again, carrying them all the way to the NBA Finals and winning two MVP awards during his time in Cleveland. Dwyane Wade is the only player out of the 4 of them that has carried his team to an NBA Championship.  He's built a reputation as a closer and an explosive dynamic player on both ends of the court.  Chris Bosh?  Ok, maybe he's been an underachiever as well.  He's put up great numbers in Toronto, but has only made the playoffs twice in 7 seasons and has never been past the first round.  But I would never suggest that Chris Bosh is overrated.  He has been one of the more talented power forwards in the league and last year averaged a career-high 24.0 ppg along with 10.8 rgg.  As for Carmelo, from the beginning of his career to now, he has always been overrated in my eyes.  Earlier throughout his career, he was criticized for bad shot selection and selfish play.  Twice, he's averaged over 28 points, and along with Lebron, is one of the few players have have accumulated at least 12,000 points, 3,500 rebounds, and 1,500 assists.  However, take a long look at Carmelo's track record.  He's only been past the first round of the playoffs once in 7 years.  He's had immaturity issues, both on and off the court.  Just recall the brawl a few years ago in Madison Square Garden, in which Melo was suspended 15 games and probably cost himself a chance at an MVP award.  Now, going into his 8th NBA season, Carmelo is looking to take his talents elsewhere.  The Nuggets have offered him a 3 year/65 million dollar extension.  Considering that the league might be heading towards a lockout in the coming future, I would think that he would take the money.  But Carmelo is weighing his options.  He hasn't decided to accept the extension, which means that next summer, Carmelo would have his own chance to be courted as a free agent.  According to sources, Carmelo doesnt like the direction of the team, and is looking to take his game (and underwhelming career success) to another location.  There are reports that New York is his likely destination, just as there were reports that Chris Paul was interested in New York so that he, along with Melo and Amare Stoudemire, could form their own "big three" in The Big Apple.  Carmelo could either take the extension so that the Nuggets could trade him elsewhere with no problem.  Or, Carmelo could not take the extension, and the Nuggets could lose him for next to nothing.  Either way, i believe that Carmelo is not the kind of player worth spending 22 million on.  He's proven that he's not a player you can build around and he's proven that while he is a great scorer, he is not a great leader, and perhaps never will be.  A leader is supposed to take charge of a team and be the voice of reason in a locker room and also show the mental toughness and fortitude that players who follow them would expect.  Scorers are a dime a dozen in this league.  But true leaders, those are the players worth keeping and building around.