Efficiency margin: points per possession (PPP) minus opponent PPP (more about these stats) All games, thru January 8 1. Illinois (+0.26) 2. Indiana (+0.22) 3. Ohio State (+0.21) 4. Wisconsin (+0.19) 5. Michigan (+0.16) 6. Iowa (+0.15) 7. Michigan State (+0.11) 8. Minnesota (+0.11) 9. Northwestern (+0.10) 10. Penn State (+0.06) 11. Purdue (-0.06)