1. NFL: Tom Brady-7 (Patriots & Bucs)
2. MLB: Yogi Berra-10 (Yankees)
3. NHL: Henri Richard-11 (Canadiens) 20 seasons
4. NBA: Bill Russell-11 (Celtics) 13 seasons
Russell was one of the greatest without taking into account championships. I'm not a fan of using championships as a measure of individual players in team sports.