The answer is possibly Wilt Chamberlain. Since this stats weren't kept until 2000-2001 season. So we can't say for sure. Here are the stats in the dunk category since 2000-2001. Source - JetPunk - World's Best Quizzes. read more
But give the length of his career; the no. of shot attempts and field goals, especially in the first half of his career; and his size and propensity for dunking, I would say that Wilt Chamberlain has the most dunks. read more
If you do the math (Years dunks not counted divided by years dunks counted times career dunks plus career dunks) Shaq would be at 3,233 dunks, and that's not factoring in the fact that he dunked even more early in his career, he could easily be close to 4,000. read more