With comparable sample sizes, which applies to Chuck I vs. Nate comparisons, statistics are rarely misleading but they're also rarely dispositive. For example, Nate may end up with more TDs but he won't end up close to career completion percentage or YPA.
Nate is a very good QB with a year left to become a great one. If Nate throws for around 3000 yards, gets the percentage up over 60 for the season, throws 25-30 TDs and Iowa wins a good bowl game (like the Outback Bowl or better) then he'll land as number 2 in career passer in yards and 1st or 2nd in career TDS. A fair minded observer would have to put Nate in the conversation for the second best QB at Iowa (Chuck Long is number 1 and whoever you think is second isn't close).
It’s too bad Brad didn’t start at Iowa for at least 3 years. Then we’d have a clear # 2, and maybe someone in the conversation for #1 overall.