wow, you have michigan way up there. hard to fathom their sustained recent mediocrity, if they're truly the 2nd best job in the big 10.
my own ranking would be:
ohio state
indiana
illinois
michigan/msu (don't feel like i know how to evaluate these jobs)
wisconsin
purdue
minnesota/iowa
northwestern (i've said before, i don't understand why this isn't a great job. but i'm accepting empirical evidence to place here)
nebrasksa
penn st