Efficiency margin: points per possession (PPP) minus opponent PPP (more about these stats) Thru December 11 1. Illinois (+0.25) 2. Indiana (+0.24) 3. Michigan (+0.23) 4. Wisconsin (+0.22) 5. Ohio State (+0.22) 6. Iowa (+0.16) 7. Minnesota (+0.09) 8. Michigan State (+0.06) 9. Penn State (+0.04) 10. Northwestern (0.00) 11. Purdue (-0.09)