And, by either metric, I'd imagine it changes dramatically from 2000 on.
The question should not be WHEN the championship is won, but more on the lines of SUSTAINED SUCCESS.
The Miami Hurricanes won in 2002...and then faded away. Is this what you want in a program? No...you want Alabama. As much as I hate Nick Saban, he has proved to be a brilliant college football coach who can sustain a program for multiple years despite the overall strength of college football as a whole.
In fact, only a few teams have repeated National Titles since 2000:
Alabama (3)[2009, 2011, 2012]
LSU (2) [2003, 2007]
USC (2, 1 vacated) [2003, 2004]
Ohio State (2) [2002, 2015]
Florida (2) [2006, 2008]
Of those teams, OSU and LSU had different head coaches on their second national championships. It should be noted that Urban Meyer was the coach for OSU on their second, as well as Florida for both of theirs. In addition, LSU's 2003 National Title is shared with USC, because the AP Poll decided to crown USC, while the BCS crowned LSU.
Thus, counting USC's vacated 2004 season, 10 out of the past 15 seasons have been by the same few teams.
The defense rests.
EDIT: Accidentally gave Bama 4 Nattys. I now understand how they miscount how many they have :crazy: