IMO, in two years, Bosh and Dwight Howard are both going to be fighting for the 4th/5th spot on that list and the title of the best young forward in the league.
In 2 years he'll be No 5 or 6. 1) Duncan 2) Garnett 3) Amare [depending on if the Suns get a center or not] 4) Dwight 5) O'neal 6) Bosh