They were not the type of fighters who could stop someone early. Douglas landed clean shots on Tyson all night and it took 10 rounds to finish him off. Holyfield was the same.
Holyfield was the first man to drop Riddick Bowe and iron chinned Ray Mercer with single punches. Calling Holyfield light hitting clearly you don't know what you're talking about. And that's quite evident because you picked Joyce to beat Tyson and believed the hype that a slow no defence Joyce was some ATG killer for beating Parker absolutely laughable.
Holyfield was not a hard hitter, average at best. What don't you understand about that? Anyone with sense knows that.
Based on what we know of Joyce now it's probably safe to say Tyson stops him at some point or wins hand pretty convincingly on points.