Going by stats alone is very misguided. If that was the case, then I would have to put Oscar as the best player ever (averaged a triple double as a rookie). Wilt was a physical freak, but his greatness heavily came from the time he was playing in. He was the only 7 footer at the time, playing in a league without a 3 pointer, and more importantly, NO GOAL-TENDING. For those of you who haven't actually watched Wilt play, he would sit under the basket, wait for one of his teammates to shoot the ball, then while it was on its downward arc, grab it in mid-air, and dunk it. I remember seeing one of his teammates shoot a bank shot, but after it hit the backboard, Wilt just grabbed it and put it in, himself. Hell, if I was playing with a bunch of 5th graders on an 8 foot hoop, without goal-tending, I'd average 50 ppg too.
Having said that, Wilt was one of the most physically gifted players of all time. If he had been born into today's age, I'd say he would be something along the lines of a Dwight Howard; a physically gifted beast, but raw offensively.