Dikembe Mutombo (1992-2009)
Dikembe Mutombo must be one of the most feared defenders in the history of the NBA. He was named the Defensive Player of the Year 4 times over the course of his career. At 7 feet 2 inches, he could just swat the ball when it came near their basket. He averaged 4.3 blocks per 48 minutes played, the sixth-best when it comes to centers. While many outscored him, he made sure they worked hard to get it in.
Bob Lanier (1971-1984)
Bob Lanier is a dominant center who spent his career in the Midwest. Both the Milwaukee Bucks and the Detroit Pistons retired his jersey number! In 14 seasons, he averaged 10.1 rebounds and 20.1 points per game. He sank over 51% from the floor. He was an All-Star talent 8 times. He averaged 13.8 rebounds, 2.6 blocks, and 25.1 points per game in 4 playoffs with the Pistons. Sadly, he never won a title.