We need to clarify categories though.
I say:
Best Rider (overall)
Best Rider (Younger, maybe 12-14?)
Best Street Rider
Best Park Rider
Best Flat/Tech
Most Stylish
Most Improved
Best Trick
Best Video
Best Scooter
EDIT: I think thats about perfect, it covers all areas of riding and makes it so theres a separation of the smaller, weaker kids from the bigger manlier kids.