I've seen this scenario play out so many times in college football. Halfway through the season, we've got half a dozen undefeated teams with an argument as to getting a major bowl invite, or with an argument for the crown of National Champ. The playoffs settle a lot of this now, and thank goodness for it.
Usually, by November 1, that half dozen is down to 2-4 teams at best. And it sort of works itself out. It is VERY hard to win all 12 regular season games. AND a Conference title game. Bama has been dynasty above all others since 2009 (and I would argue even 2008), and only finished undefeated that one time, after 13 games: 2009.
I predict we have two undefeated teams after championship Saturday, and maybe before.