There is no argument over which defense is the best in college football this season. Zero. Zilch. None.
The Alabama Crimson Tide lead the country in points per game, yards per game, yards per play, Total QBR and, well, just about every other major defensive category this season.
But the question still remains: Is this the best Bama defense Nick Saban has ever coached? Entering this season, most would have agreed that Alabama's top defense under Saban was the 2011 national championship-winning squad. That team allowed only nine offensive touchdowns and has been widely regarded as one of the best defenses in college football history.
So how do the two compare?