Well, I'll disagree somewhat on Melo. Denver took the healthy Lakers super team to 6 and easily could have won the series. Chuck calls Melo the league's best pure scorer and I would have to agree having watched him a lot while living in CO.
Thing is, he is not a flashy player at all. You'll rarely find him on highlight reels, etc. But he'll get you a very quiet 30 points. Not many in the league that can do that night in, night out.
Amare really shrank last season. Put Tyson in the mix though and they could be dangerous...but who is the team leader? Can Melo be that guy?