You guys can make an argument about Jay winning in 2001. However his better condition that was giving him the edge over Ronnie was due to some diuretics he used that were forbidden that year. Actually Jay was found positive and got disqualified.
Now, I am not saying that Ronnie is natural but he has never shown up as watery as in 2001, so probably he was afraid of testing and sticked to the rules, at least to some extent.
That being said, in 2005 there was no contest: good Jay but definitely superior Ronnie.