They beat the #11 and 15 teams by a combined 125-7! Yes, they had a couple close ones with lesser teams, but so did the Dolphins during their champioship years.
Outscored the 5 ranked teams on their schedule 236 to 72 and led Nebraska in the Rose Bowl 34 to 0 at the half. And, if you look at comparison of the positions only QB would LSU have the advantage.