I like medina's take that there is a clear top 7 and bottom 7, and they should almost be treated and ranked as 2 different entities, with crossover games ignored, since there haven't been any crossover upsets yet anyway. That really, outside of your record listed below, your overall record is nothing more than a reflection of getting to/having to play more or less crossover games than other teams
I can also see why MSU is ranked #4 in SOS and #13 in SOR, which I believe is best in the nation among 3 loss teams
1. WISCONSIN (1) - 2-0 (W - NW, IA)
2. OHIO STATE (2) - 2-1 (W - PSU, MSU; L - IA)
3. MICHIGAN STATE (3) - 3-2 (W - IA, UM, PSU; L - NW, OSU)
4. PENN STATE (4) - 3-2 (W - IA, NW, UM; L - OSU, MSU)
5. NORTHWESTERN (6) - 2-2 (W - IA, MSU; L - UW, PSU)
6. IOWA (5) - 1-4 (W - OSU; L - PSU, MSU, NW, UW)
7. MICHIGAN (7) - 0-2 (L - MSU, PSU)
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8. NEBRASKA (11) - 3-1 (W - RU, IL, PU; L - MN)
9. RUTGERS (9) - 3-1 (W - IL, PU, MD; L - NEB)
10. MARYLAND (10) - 2-1 (W - MN, IN; L - RU)
11. PURDUE (8) - 2-2 (W - MN, IL; L - RU, NEB)
12. MINNESOTA (13) - 2-2 (W - IL, NEB; L - MD, PU)
13. INDIANA (12) - 1-1 (L - MD; W - IL)
14. ILLINOIS (14) - 0-5 (L - NEB, RU, MN, PU, IU)