I certainly disagree that Iowa will be tougher. Plus the Iowa QB looked pedestrian, although he may be a tweak better than the Michigan one. Michigan just looks a lot better to me than Iowa. I may be wrong, but after watching the Iowa/Wisconsin game, I came away from that game feeling that both of those teams are good but probably the equivalence of a 2008 NU team that went 8-4. Nothing wow but good enough that you will lose if you make mistakes, but bad enough that we will beat both of those teams if we simply take care of things.
Michigan has harbough, who is an EXCELLENT coach. All he does is win. He has the pulse, players believe in him. The difference between Michigan last year and this year is coaching.