Wagon play - The election of Miss Potato

As per annual custom, the Toneelvrienden Aarsele present a pageant wagon at the Aarsele fair on the first Sunday of the month of August. This year, the choice was made for 'the election of Miss Patat' written by Fons Vinck. A typical beauty pageant where the 3 finalists excel in ..... And who will ultimately become Miss Patat ?