Posted by Pookie
BJ Penn and Aoki
Posted by fedorwins1
Damien Maia, Jacare, BJ Penn, Big Nog, Arona, Aoki, Sherk (not a submission type of fighter but his ground game/control is solid), Paulo Filho, Wagney Fabiano, tons of other fighters out there who have sick ground games.
Posted by billycarnage
I think BJ has the best though. Nobody can defend like him and his positioning... He's damn good.