According to Jeff Sagarin's Computer Ratings, here are the Top CFB teams of the BCS/Playoff Era (Since 1998):

2005 Texas 106.9
2001 Miami, FL 106.4
2019 LSU 104.9
2019 Ohio State 104.8
2016 Clemson 105.4
2016 Alabama 105.3
2011 Alabama 104.2
2004 USC 103.4
2018 Clemson 103.2

— Brad Powers (@BradPowers7) January 14, 2020