If I may ask . .
what type of employment do you need, will your be looking for?
And if your independently wealthy - then more power to you!!
I grew up in the midwest and although I despise winter I am glad I am raising my child here.
Living in Michigan I can tell you that the Traverse City (Petosky, Charlevoix, Harbor Springs, Leelenau) area is beautiful. Also I think the Grand Rapids area is nice if you are looking for more of a big city appeal. Grand Haven and Manistee, Rockford, Sparta (apple orchard country and wine country). Personally I live near the edge of the thumb between Saginaw and Flint and it's farm country and it is really economically depressed.
Housing prices are at an all time low here.
Good Luck and keep us posted!