My personal vote goes to Steve Austin, mainly around the time of when he lost the title at Breakdown 1998 and after nearly of getting screwed out of title matches by Vince winning it back at Wrestlemania 15 and then the whole Corporate Ministry angle followed that, i loved that time and thought it brought credibility back to the belt after The Rock and Mankind swopped it around like a hot potato a few months earlier.
Yeah, his first title win was amazing on that episode of Raw.
If a little 'unclean'. :D