South- UCLA (beats UF and Dayton)
East- Virginia (beats Michigan St and UConn)
West- Arizona (beats SDSU and Baylor)
Midwest- Louisville (beats Kentucky and Tennessee)
I believe the winner of the West/Midwest Final Four matchup wins the tournament.
I might have let my sheer hatred for all things Gators get in the way of logic...
Unrelated, I suspect a lot of coaching vacancies will be filled in the next 10 days.