So in 2016 ISU plays 2 other non conference games. UNI and SJSU. Big 12 Iowa better than Kansas, KSU, Texas has been awful of late, WVU, Texas Tech. So right there is 7 teams. Okie St & TCU I'll give as a toss up. I'm sure clone fans will say they are better but Iowa fans will disagree especially with TCU losing Boykin and Doctson on offense.
So besides OU and Baylor you could argue are consistantly better than Iowa most years and probably start the season ranked ahead of Iowa.
But thanks for showing your ignorance. You know some years yeah maybe Iowa is around bottom 6 but Iowa will be ranked in almost every pre season top 25 coming into next year. Last season final polls only OU and TCU finished ahead of Iowa. So Iowa was 3rd best team by final season rankings ISU played. I highly doubt just like the end of last season's rankings there will be 6 Big 12 teams ahead of Iowa next year.
To be fair you don't know how good Iowa is going to be this year. Last year Iowa was one of the tougher games ISU played not one of the easier ones.