Otto Graham
During an astounding career in which the Browns compiled a 105-17-4 record, at the time of his retirement Graham's 86.6 career pass rating (combined AAFC and NFL) served as one of the best of all time, tossing 188 touchdowns in ten seasons of play.
Graham played six seasons in the NFL and took the Cleveland Browns to the NFL Championship Game all six seasons, winning three NFL titles. Including four seasons in which his team captured four AAFC titles, Graham played ten total seasons of professional football and made the league championship game all ten seasons, winning seven league titles. In his single season as a professional basketball player, the Rochester Royals (today's Sacramento Kings) also captured the league title. Thus, in 11 seasons as a professional athlete, Otto Graham's teams made the championship all eleven years, winning eight titles.