If you ever doubt the SEC is the Lord Emperor of College Football

Look not further than the number of different teams in each conference that's won a national championship during the modern (BCS/playoff era). The numbers speak for themselves.

SEC
Tennessee, LSU, Florida, Alabama, Auburn, Georgia

ACC
Florida State, Miami, Clemson

Big XII
Oklahoma, Texas

Pac 10
USC

Big 10
Ohio State

The schools listed above represent all college football national championships going back to the 1998 season almost a quarter century ago. In the past 23 years only 13 different teams in the FBS have won the national Championship. Six of those 13, almost half, are from the SEC. The closest conference to the SEC is the ACC and they have half as many teams that have won a national championship as the SEC.

That's what you call complete domination.

And if you want to look by region, the South completely owns college football. In the modern era only three times, or 2 if you want to consider Oklahoma as Southern, has the national champion not come from the South.