Sam McKewon and Jon Nyatawa had a great conversation in this week's Pick 6 podcast regarding the "rivalry" of NU and Iowa. Sam makes the point that for most of the past 35 years, the 2 programs are very similar.
In the 1980s, NU and Iowa were in the middle of the tenure of their "legendary" coaches at NU. TO was at NU and Fry was at Iowa. Both teams had some very good/great teams, but would constantly come up short. Iowa NU would lose big games to OU or CU at the end of the season, which would dash their championship hopes. Iowa would constantly come up short against Michigan or Ohio State in the hunt for the Big Ten title. Sam said that the 1985 Iowa team (with Chuck Long) was probably the best team in the country, but a loss to Ohio State when they were #1 and then a Rose Bowl loss to UCLA cost Iowa it's chance for the National Championship.
The 90s, are where the two teams went separate paths. NU went to a higher level in TO's last few years and reached the pinnacle of college football, while Iowa "struggled" at the end of Fry's tenure, but still posted winning seasons.
Since the turn of the century, NU and Iowa have almost the exact same record. Iowa has higher peaks with and lowers valleys, while NU has been pretty much the same 8, 9, 10 win team for the past 15 years (save for a few disastrous losing/.500 seasons).
This year, Iowa is playing like how most NU fans want NU to play. They are playing smart, hard-nosed football. They limit mistakes and the kids are playing "above" their recruiting ranking. Yes, Iowa is taking advantage of a "weak" schedule, but Iowa can only play the teams that are on their schedule. NU has had a very similar schedule and have a much worse record. The only reason NU doesn't want to accept Iowa as a rival, is that NU fans are snobbish and don't want to put Iowa on a similar level. But other than a few years in the 90s, NU and Iowa have been similar programs the past 35 years.