JOHN BATTLE (10 SEASONS)
Winning percentage: 58.2%
John Battle has to be the most surprising person on the list. He played for the Atlanta Hawks and Cleveland Cavaliers and never was on a losing team. He slipped through as the 1989-90 Hawks finished 41-41. Whew. A fourth-round pick in 1985, Battle scored more than 5,300 points in his career.