Hanzou
Grandmaster
I feel every one is over thinking this. People think BJJ is better because the Gracie promotional machine "said so".
If you were around before UFC you may remember Rickson Gracie adds in magazines like black belt trying to promote his video tapes that were all the rage in technology back in the late 80,s. Then to promote it further he made the UFC. And wow by chance they won "things that make you go humm"
So people still quote Ricksons add, 90% of fights go to the ground, and BJJ will beat a striker every time. So if you believe BJJ is the best and is better, congratulations you drank the purple cool aid.
This again, really?
People thought Bjj was better because they saw multiple examples of the Gracies beating every type of fighter imaginable. It wasn't just the UFC, it was also the Gracie challenge tapes, Rickson fighting in Japan, and multiple other examples.
It wasn't because they said so, it was because the Gracies stepped up and put their style to the test.
Let's also not forget that 20 years later, Bjj is STILL a mainstay of MMA.