According to Andy Katz, and depending on what key players decide to do.
Tier 1) MSU, Michigan, Iowa, Illinois, Purdue
Tier 2) Wisconsin, OSU, Indiana
Tier 3) Rutgers, Maryland, NW, Minnesota, PSU, Nebraska
Tier 1) MSU, Michigan, Iowa, Illinois, Purdue
Tier 2) Wisconsin, OSU, Indiana
Tier 3) Rutgers, Maryland, NW, Minnesota, PSU, Nebraska