I did a case study of the past 2 season's national champions in the 6 worlds that I'm in.
I found the winner used the following:
Motion - 20
Triangle - 8
Flex - 4
Fastbreak - 2
Man - 18
Press - 11
Zone - 6
Doesn't quite add up to 36, but there were a few I couldn't tell for sure. Pretty interesting that in Knight season 57 that the 3 winners all used Triangle offense, and each used a different defense. Maybe Motion/Man is most popular...maybe it's the "best"...?