Actually, in the last 4 years , the Big 10 vs. SEC is 6-5 in favor of the Big 10.
2005
Minnesota 20, Alabama 16
Georgia 24, Wisconsin 21
Iowa 30, LSU 25
2006
Florida 31, Iowa 24 - Outback
Wisconsin 24, Auburn 10 - Capital One
2007
Penn State 20, Tennessee 10 - Outback Bowl
Wisconsin 17, Arkansas 14 - Capital One Bowl
Florida 41, Ohio State 14 - NC Game
2008
Tennesse 21, Wisconsin 17 - Outback Bowl
Michigan 41, Florida 35 - Capital One Bowl
LSU 38, OSU 24 - NC Game
That's pretty good for the Big 10, considering that half the time these games are played in SEC states and stadiums.