I fully respect Nebraska football and its history. The run of 3 titles in the 90s was very impressive, and I thoroughly enjoyed Frazier dismantling the Florida defense.
However, there have been 15 years of football since that last shared national title in 1997.
That is not some insignificant span of time.
During that time the numbers are as follows:
Winning percentage: NU - 68.8%, KSU - 64.4%
Double digit win seasons: NU - 6, KSU - 7
Conference titles: NU - 0, KSU - 2
Finished top 10: NU - 3, KSU - 4
Pretty much equal programs for the last 15 years. Keep in mind that includes Snyder slipping, Prince, and Snyder rebuilding.