I've been fortunate to have had the teachers I did. Rickson, Joe Lewis, Billy Blanks, Wallace, my boxing coach Joe Vassalo, my all around fighting coach JKD man Joe Maffei (student of Rickson)
I don't know who they would go to to get their butts kicked, maybe each other, I don't know. But I watched all off them fight a lot. A whole lot.
I once watched Rickson roll with over one hundred people in a row. You read that right, over one hundred people. It took several hours. They were wrestlers, Black Belts, football players, brawlers, Judo guys, street fighters, Karate guys. And with every single one of them he let them do the same thing - overpower him and get him in any position they wanted. Then he'd calmly work out of it and submit them. Every single one of them. And if you're thinking it would be different if they were allowed to punch, yeah, maybe, but I doubt that. The first dozen times I worked with Rickson he didn't teach me BJJ, not technically, he taught me how to work on the ground to utilize my punching and elbow skills in a grappling format, from bottom, top, side and during stand up grappling. BJJ came later.
Joe Lewis was fricken' scary. And he fought with anyone. I saw a guy get testy with him once. Joe was probably fifty at the time, I first trained with him when he was in his late twenties. Joe slapped him.....in the chest. WHAM, and it was so fricken' fast. I can still hear the sound it made, I really can, like it was yesterday. I remember the look on the guy's face. How he slowly turned and sunk to his knees. Gasping. We looked at his chest afterwards, he didn't want to show us, but we pulled his shirt up anyway. Like he had a choice, the chump idiot. And I say that because what the hell are you thinking when you do something like that? Especially to who he did it to. "Hello, earth to guy - smarten the F up"
The hand print almost looked like a tattoo, like it came from the funny pages. It was totally awesome.