No one really picked up on my thread about School Transfer so I'll try it a different way.
We have the 4 schools and pick the 10 top students from the class lead by the person mentioned:
Hogwarts - Harry
Hero Academy - Deku
Brakebills - Quentin
Ninja Academy - Naruto
All are in their final year and just before graduation. It's a standard arena fight with all possible pairs (4C2).
Who wins the most? I know the Ninjas might have a speed advantage but I hate speed equalized rumbles.