4. 2012 Alabama (13-1)
All-Time Season Score: 26.818
Oh that Johnny Manziel.
He was able to go off in the amazing 29-24 Texas A&M win over the Crimson Tide late in the season, but everything else worked in 2012 for Bama with the nation’s top defense that allowed just under 11 points per game.
How amazing was this D? LSU finished second in the nation giving up 261.5 yards per game. Alabama allowed 183.6.
The Tide survived in the final moments against Georgia in the SEC Championship, and then obliterated Notre Dame 42-14 for the national title in the BCS Championship.
Along the way it started the season with a blowout win over Michigan, blew out a strong Mississippi State team, and got this high in the Season Rankings because of the tremendous 389-point differential, beating teams by an average score of 39 to 11