Between these two, pick the school where you want to spend your time. Your results after you finish your undergrad program are most likely determined by you and not by the minor difference of these two very similar schools.
For what it’s worth, I got my undergrad business degree from UWEC and still had all the opportunities that you are seeking. Today, my peers are from Wharton, Michigan, Georgetown, NYU, etc, and we are all highly successful.
Good for you in pursuing a great education at Minnesota or Madison, but please relax and enjoy whichever you choose. You are going to do great!