I heard that there was only about a 5 point difference between 1st and 6th place during prelims. Must have been a tough competition to judge! Many of these groups will see each other again this season so it will be it interesting to see what happens! Congrats to all groups!
The final placements were based on how the judges ranked the groups from 1-6 for vocals and choreography (I believe). I imagine that El-Paso, Holmen, and De Pere were all probably ranked very close to (but slightly lower than) Monona Grove on vocals. But collectively, these three groups all ranked significantly higher than Monona on choreography. So while Monona had best vocals, the collective rankings for the other three groups was higher.