Is Kareem Abdul-Jabbar the greatest, best Center in NBA History? if not who would you say is the greatest?

Kareem is the NBA's all-time leading scorer, has 6 MVP's, 6 rings, and he was still a force, a dominant NBA Center in his late 30's and early 40's, I can't think of any other Dominant NBA Superstar Center that still played like he was in his Prime around that age