#3 - Kareem Abdul-Jabbar
Due to the fact that KAJ is the All-time leading NBA scorer, people sometimes forget about just how good he was at the other end of the court. Kareem was an animal on the glass, and could change shots with the best of them. He was super long and although not bulky could hold his ground and block shots against even the biggest of opposing centers. Until just recently Kareem Abdul-Jabaar was second all-time in blocks with 3,189 before being surpassed by Dikembe Mutumbo. Kareem is also third all-time in total rebounds, and secured more than 9,300 defensive rebounds during his career. For those that followed his career closely, they would recognize most his ability to turn it up in close games and basically shut down the opposition from scoring in the paint.