I recently got to train with one of Sakuraba's old coaches (Yoshiaki Fujiwara). That was frick'n sweeeet (and painful).
THE Bruce Lee.
Chuck Norris. . . no, seriously!
Dan John, and any one of Dan John's favorite coaches.
Come to think of it. . . There is just too many to list! I also know that there are coaches out there that have forgotten more than I will ever learn. I may not know their names or their accolades, but I every day I hope for an opportunity to learn from them (or their contributions).