As part of ESPN's year-long initiative marking the 150-year anniversary of college football, we set out to rank the 150 greatest college football single-season teams of all time.
The panel of 150 media members, athletic administrators and former players and coaches selected these teams from 210 finalists initially identified by ESPN's Sports & Information group.
The voters went for national champions galore -- undefeated champions, one-loss champions and, at the very top, rarely tested champions. But not every team here finished No. 1. The highest-ranked one-loss team, at No. 31, is remembered for the game it didn't win.