Power 180-200 pounds

One Punch Power Marciano#1 Dempsey #2, Louis Best Combo/power/puncher, Satterfield At 174lbs(one Punch) Archie Moore,joe Chonisky,sam Langford

 

Tom sharkey might not be a bad chice as Maxmoorer has suggested. Rex Layne is another.

On the other side of the coin there are heavyweights who are not particularly hard punchers but still send oponents to the canvas regularly due to their punching technique. Ezzard Charles springs to mind.

 

Dempsey was undoubtedly a strong candidate on this thread, but I think several of your points are exaggerated.

1. You emphasize Willard's and Firpo's size, but is there any evidence in boxing history that huge heavyweights were more difficult for top punchers to knock out. I think, in and of itself, this is a dubious arguement. Dempsey only scored 1 knockout in six fights against Miske, Gibbons, and Tunney. He knocked out all the slow moving big guys. So did Louis. And Marciano knocked out every opponent he fought over 210 lbs. What is your evidence that big guys are harder to knock out?

2. As for Willard, he had been off three years, was pushing 38 ( he was actually older than Louis when Louis fought Marciano) and was clearly not in the best of shape. You mention the Johnson fight, but that was four years earlier, and Johnson's power certainly could be questioned, at least by this time in his career. Moran had gone the full twenty with him. He did not knock out the ordinary Battling Johnson. The much smaller Flynn was still on his feet, if bloody, when the police intervened. One has to go back to the old Jeffries, who was worn down, for something like an impressive knockout, and before that Ketchel and Burns were much smaller men. As for Willard lasting to the eighth with Firpo, almost everyone who could fight did. Brennan lasted until the 12th. Spalla to the 14th. Wills, and Weinert and Spalla in rematches went the full distance with Firpo. As a matter of fact, other than Weinert, what good fighter did Firpo knockout early? He generally took quite a while.

3. As for the Dempsey knockout of Firpo being super impressive, Firpo had been knocked out in the first round back in 1918 by the 167 lb Angel Rodriguez, who was giving away fifty pounds.

4. Dropping Tunney is certainly impressive, but Tunney hadn't exactly been in the ring with a murderer's row of punchers. Probably only Carpentier had a real rep as a puncher and he was smallish and past his best.

5. In fairness to Dempsey, if I am less impressed than you are by knockouts of Willard and Firpo, as well as Fulton and Morris, I would be far more impressed with the knockouts of Sharkey and Miske.

On a slightly different issue, If Uzcudun was really quoted as saying Baer punched harder than Louis, it really makes no sense. Uzcudun went twenty with Baer. Louis smashed his face in with the first right hand he hit him with and dropped him for the only time in his career. How could Uzcudun then arrive at the conclusion that Baer hit harder than Louis? Maybe Baer did, but I don't understand how Uzcudun could attest to it.