I would take the testimony of the (iron-chinned) guy who actually took the punches of both fighters for multiple rounds as more important than our own subjective impressions of a single knockdown.
This is essentially what I have been trying to argue. There is a difference between the guys known as "big punchers" and someone like Lewis, who as you say was not as "power-dependent." In some sense, incidentally, that actually means that those who are saying this are saying he was more versitile.
I was sold on his power after the Ruddock fight myself. Power in both hands but mostly with his overhand right. Nice, powerful jab too!
Holyfield didn't drop Mercer with a body shot. It was a left hook to the head that hurt Mercer, Mercer reeled back, then took a knee.
Good post but I disagree on one thing - Hide was actually a very good boxer with lightening speed but he relied on reflexes too much and when you combine that with a horrible chin....bad news. He certainly could put punches together very well.
Lewis was a huge puncher, that allowed him to play it safe a lot in his career, because most people weren't stupid enough to just come in, they feared his right hand, in all of its forms.