RJ ranks 'em:
1. Michigan (7-1, 5-0)
Back-to-back dominant wins over Wisconsin and Michigan State, and now Wolverines have a bye week to prepare for visit from Penn State. Last week: 2
2. Iowa (6-1, 3-1) Prove-it time, with back-to-back trips to Penn State, Purdue. Last week: 3
3. Ohio State (7-1, 4-1)
Buckeyes blown out at Purdue, just like they were at Iowa last year. They get a bye week to recover. Last week: 1
4. Penn State (5-2, 2-2)
Nittany Lions have beaten Iowa four straight times. They need to make it five to keep season from derailing. Last week: 5