Diaz. Condit. Kampmann. Lawler. I'd like to see any of those fights, to be honest. Brown-Lawler probably makes the most sense of any of those options right now. The Immortal needs a top-10 dubya if he's going to keep spouting off, though. That being said, I respect the hell outta him. The guy leaves it all in the cage each and every time he fights. I learned a while back to think twice before betting against him.
As for his claims of being able to outwrestle GSP. Almost 100% no. But nowadays it seems you gotta talk your way to a shot.