1. Ohio State (7-0; vs. Purdue)
Allowed 87 points in the past two games, but scored 115
2. Michigan (4-2; vs. Michigan State)
Denard Robinson: No turnovers in the past two games
3. Penn State (4-2; at Iowa)
Only two turnovers in the past five games
4. Nebraska (4-2; at Northwestern)
WR Kenny Bell's 23.1 yards per catch is best in nation