Margin of victory vs. FBS opponents
FBS opponents records vs. FBS opponents (besides that undefeated team)
FBS opponent with the best record vs. FBS opponents (besides that undefeated team)
Georgia - 31.3 pts, .620 record - Auburn and UK 5-1
Wake - 18.7 pts, .500 record - Virginia 5-2
Michigan State - 12.1 pts, .489 record - Michigan 7-0
Cincinnati - 21.3 pts, .432 record - Notre Dame 7-0
Oklahoma - 11.5 pts, .373 record - Kansas State 4-3
A few notes:
The only teams Michigan State has played with a winning record vs. FBS opponents are Michigan and Miami. A loss seems inevitable between Purdue, Ohio State, and Penn State. By comparison, Wake has played three teams with a winning record vs. FBS opponents, Virginia, Syracuse, and Army.
Oklahoma has played four teams with with losing records vs. FBS opponents, Tulane and Kansas are 0-6. Nebraska and TCU have 2 wins each. By comparison, Wake has only played two teams with losing records vs. FBS opponents, ODU and Duke.