I know what you mean, he never quite hit the stride that his talent, which was shown in flashes largely in matches with Bret Hart, deserved.
HOWEVER, I only just recently discovered his feud with Nick Bockwinkel in AWA which basically the reason he got booked like a big deal and a star when he signed for WWF, and that feud, even if in the territories just edges him into the 4 category for me but otherwise would have been a 3