Six Big Ten teams are receiving votes in the latest Associated Press (AP), USA Today coaches and Harris Interactive polls, including three teams among the top 25. Ohio State improved to 9-0 and won its 21st straight game overall to hold steady at No. 4 in all three rankings. Michigan State knocked off Michigan to move to 8-1 overall and jumped at least five spots in each poll, appearing at No. 18 in the AP and Harris vote and No. 19 in the coaches' estimation. The Spartans are ranked in the top 20 for the first time since Sept. 23 of last season, when they were rated No. 20 by the media and No. 18 by the coaches. Wisconsin earned a road triumph at Iowa to improve to 6-2 on the year and climbed to No. 21 in the AP poll and No. 22 in the USA Today and Harris rankings. Minnesota, Michigan and Nebraska are also receiving votes.