You guys are missing the obvious comp - Carmelo. Their numbers were very similar as college freshmen and NBA rookies, despite the Sonics/Thunder insisting on playing Durant out of his natural position. The interesting thing will be if Durant makes his leap after the ASB this season or some time next season.
Good comparison (esp. the parallel career paths).
I think that's an optimistic time line for Durant, even if you consider that Melo's growth has probably been stunted by often having his head up his ass on and off the court. Durant's brutal supporting cast probably won't help his development, though Jeff Green is starting to look like he might by useful.
Melo always put up points but it took him 4.5 seasons to start scoring really efficiently. We won't get into the lack of rebounding and defensive intensity - you know, the things that have to do with winning. With that stroke, I thought he would have been a much better 3p shooter sooner. He was brutal up until last season.
He's not in Wade's or Lebron's league and, for one season, I'd rather have Caron Butler. He's an All-Star player and still very young, but I expected bigger things from Melo. Then again, it took like seven seasons for Paul Pierce to go from excellent scorer to great player. I'm really hoping we see more from Durant.