Maybe it would have been more interesting if it would have been set up with two games on Friday evening. Then, have the losing two teams meet on Saturday afternoon in a consolation game, and the winners playing Saturday night for the “Big Four Championship”?
When both ISU and Iowa played both Drake & UNI each season, maybe. Assuming first round is ISU-Drake and Iowa-UNI one season, switched the next. A downside to it, chance of ISU and UI meeting twice in the regular season unless the home/away rotation was dropped, which I doubt would happen. Also an occasional chance UNI & Drake could meet 3 times per season, since both in same conference.
My alternate idea (when all teams were facing each season) was to do Iowa/UNI & ISU/Drake on one day, the reverse on the other day.