Efficiency margin: points per possession (PPP) minus opponent PPP (more about these stats) Thru December 4 1. Indiana (+0.27) 2. Ohio State (+0.26) 3. Iowa (+0.22) 4. Illinois (+0.21) 5. Wisconsin (+0.21) 6. Michigan (+0.18) 7. Penn State (+0.15) 8. Minnesota (+0.10) 9. Michigan State (+0.04) 10. Northwestern (0.00) 11. Purdue (-0.11)