Guys, disagree with Pronman all you want, but it's not hard for him to justify his rankings. He specifically says his rankings reflect who he thinks is going to have the best career. So any player who is already in the league and doing it, whether he's right or wrong, he can easily argue, "sure, but that's the ceiling."
I'm with posters who think he's stubborn and probably wrong on Hutson, for example, and I agree his skill rankings are meaningless, but I don't think it's a good argument to say "how can he think X is worse than Y when X is already in the league and doing it?" Answer: he thinks in 15 years the Y player will have surpassed the X player. Simple.