Every advantage? I don't view Haye's jab or defense as superior. Sharkey was also clearly better infighter.
Neither or them were infighters, so it wouldn't come down to that also Haye has a good defense, he never got hit lots even in the Klitschko fight he didn't get hit with many flush punches
Sharkey could rely on his infighting depending on a matchup. He outmauled the Mauler in their fight and he usually did a lot of work inside against bigger opponents. It doesn't matter though, because you said that Sharkey has no advantage - which is not true.
I meant Haye has every physical advantage meaning speed, power size, strength and Sharkey has nothing to get past that and get on the inside he would be on the end of the fast and powerful punches of Haye and start to lose ideas
Why should we assume that Haye was stronger or faster? These two are definitely close in my opinion. Besides, we've seen a lot of fights when less physically gifted fighter won.
Haye is 3 inches taller, anyway Roy Jones dominated all sorts of fighters similar size to himself and bigger
Sharkey sometimes weight in over 200lbs, in shape, on a 1920s/30s training regime. These are two men who belong in the same weight class. I think that it is eminently fair to say, that they have different styles, and different strengths and weaknesses. Styles are going to be more important here, than who is bigger, who is faster, or who hits harder!