I dont want to be too mean or snarky, but you a very wrong with most of what you claim.
Last 20 years are not close
ISU winning percentage is 38%
Iowa winning percentage is 60%
ISU schedule has been bolstered by playing a team that has a 60% winning percentage in Iowa. Iowa schedule is watered down because of that. That is a fact.
ISU got most of their good seasons before last year in a terrible Big 12 North. Which is way worse than the big 10 west. Iowa has been consistent with either the legends, west, or regular big schedule.
As far as saying the Big 12 is better? Not so much last year IMO. The big 10 and big 12 are pretty even historically. Either fan base could argue their case. I will give the nod to the big 12, but recently and going forward the big 10 could be better. Texas and Baylor are not their prime anymore. Nebraska is in the big. Missouri is gone. Oklahoma is the cream of the crop. TCU and OSU are right there. Big 12 used to be top heavy but looks to have a lot of mediocre teams outside those 3. In the Big 10 you got Michigan, OSU, Penn State, and Wisconsin. MSU Northwestern and Iowa have been good recently. I see a lot of similar teams in each league.
What past troll is this?