I think Tyson was around 30 and Holyfield was around 35 so really both were far from Prime....Holyfield Prime would still have to much Class and His Chin was quite good....Prime Holyfield takes Prime Mike to deep water and finishes him in 9.!!!
Possible tyson was on roids, but it wasnt as blatantly obvious as holyfield going from cruiser to heavy, heart issues etc for mr evan fields. Mike was a natural heavy and almost a 200pound beast from a child. You headbutt me and i will elbow you etc.
He was lighter, more willing to brawl, tend be hurt more easily and didn´t care about game plans as much. The comp. with the heavier, more muscled, but slower Holyfield imho is nonsense, or lets say not as easy as many would think. For example Ali, you just cannot merge 2 different stages of life. We´re talking about a fighter who could box absolutely competitive for 24 rounds with a primed 6'5" 240lb SHW monster. Defensive boxers or boxer-punchers will always be something else than pure offensive fellows who had to make the first step, like Rocky, Frazier, Tyson, Joe Louis in some way. Put one of them in the can for a good amount of aging, the math becomes more easy.