Well I dunno, NU won 3of4. Lets look at the NFL.. The patriots have done that, and they probably won't even get to the Super Bowl this year. So they'll probably end up with 3of4 as well. The Patriots will always be rememberd as a dynasty in the 2000's... the Huskers will remain the dynasty of the 90's.
Yes, it would be huge if USC three-peated.. BUT, it won't take away from the Huskers.