I looked through the results and Yamaha came out on top again this year in Championships.
Yamaha - 11
Honda - 7
Kawasaki - 5
KTM - 5
Suzuki - 5
Cobra - 3
The thing that amazed me, is a lot of the Yamaha championships were on the YZ 450, the bike everyone bashes, and says it not a good bike. some of the most competitive classes went to Yamaha.