I don't know what the actual vert on any of these guys is, but there are a few out there that actually blow your mind when you see them. Sometimes it's how high they get, and sometimes it's how quickly they get up there. SquatDr's is impressive. The french kid is impressive. Vince Carter at his prime was impressive. Jordan at his peak was impressive. The best I ever played against was a kid from Chicago named Ronnie Fields (teammate of Garnett). I don't know whether he ever got to 50" but it was damn impressive.