15 rounds. I give the edge to Holyfield in this fight. He has an advantage in size, speed, and overall skill. Marciano will always be there, looking to land the power shot, but Holyfield stood up to the punches of Tyson, Bowe, Lewis, and Foreman, so I don't see Rocky being able to stop Holyfield. Could be the most action-packed fight in Heavyweight history.
Marciano had something Tyson or Bowe lack, long term stimia, and in 15 rounds, I see Marciano grining Holyfiled down and out. Rounds 12-15 would be the decided factory in a Marciano victory imo.
In a 15 rounder Marciano takes it. In a 12 rounder it is closer. Marciano was the kind of fighter that Evander liked to fight. Someone who didn't use a lot of lateral movement and open to counterpunches. At the same time, Marcianos stamina was lightyears ahead of the closest style fighters that Holyfield fought (Tyson, Cooper) I think Holyfield would be winning the fight, landing clean counterpunches and perhaps getting a flash knockdown against The Rock like Walcott. But after about round 8, it's Marcianos fight. Holyfield's incredible toughness and durable though aren't to be taken lightly, however and in a 12 round fight it's much harder to get broken down by bodyshots, rough tactics etc. that were Marcianos specialty. I'll go with Marciano KO12 in a 12 rounder with Holyfield having a slight lead. Marciano lands his Suzie Q and ends it. But I could easily see Holyfield surviving Marcianos late surge and being able to win via decision, this is a very tough fight.
I agree on Rocky's stamina being far above those I mentioned, but even so, I think Holyfield can match the Rock in durability and stamina and toughness, and if not match it, have enough to stay in for 15 rounds and take a decision. If Evander doesn't get lured into a brawl and actually boxes for the vast majority of the fight, I don't see Marciano winning. But like I said, great action throughout.
It's all about whether or not you feel Holyfield survives Marciano's late assault, I personally feel he does, and that gives him the decision. I don't see the Rock, for all his power, pressure, and roughness stopping prime Holyfield.
I think Evander takes this one. His edge in height and reach along with speed, jab and combination punching gives him the edge. I don't see Rocky knocking out Evander, who has a concrete chin and has taken the bombs of men like Tyson, Bowe, Foreman, Lewis etc, men much larger than Marciano. I see this fight ending in a tko with Marciano being stopped due to cuts. Rocky would be game for sure but he would be eating alot of leather trying to get close enough to hurt Evander since he's too short to fght him from long range. And a prime Holyfield would be the best composite puncher Marciano ever faced. Of course if Evander was'nt in good shape things could get interesting but that probably would'nt happen. Rocky has stamina and power but not the right body nor the speed to get it across to a fighter like Holyfield. Game to the end but loses nonetheless.
Holy seems to love to brawl and this would be his downfall in his fight. I could see this fight going like Chavez-Taylor with Holyfield beeing able to outbox Marciano but his guts would let him brawl with Marciano. He still could make it over 12 but definitly loses over 15.
I don't see Marciano's edge in chin, stamina, heart, durability, determination, and rough tactics, I think Holyfield is his equal in all of these dept. The prime Holyfield, from the 2nd fight with Qawi to the 2nd fight with Bowe, can match the Rock in every way except power. He is faster, a more skilled boxer, and the taller fighter with the much longer reach. I don't see Rocky stopping this Holyfield, and that means he gets the decision, despite Marciano's surge in the late rounds. I also feel that Holy of the Bowe fights (200-210lbs) may be the stronger fighter, and I don't know of anyone that the Rock fought who was stronger than him. He would know the dangers of getting into a brawl, and would minimize how much this would happen (of course it would happen though), generally keeping Rocky off and outboxing him from the outside.
Much better boxers, Ezzard Charles & Jersey Joe Walcott could not do this. Rocky eventually got to them. & Evander likes to engage in toe to toe action, which could turn the fight against him in a hurry.
I personally don't feel Walcott was a superior boxer than Holyfield. Crafty for sure, but I give the technical edge to Holyfield. Charles was past his peak both times he met Marciano, and he did not have the chin that Evander had nor was he as big and strong as Holyfield, a lesser puncher at heavyweight as well, but still went all 15 rounds with him because of his phenomonal boxing skill. I don't see Marciano eventually getting to Holyfield and stopping him. He would hurt him late, but I don't see Rocky stopping prime Evander. Quite honestly, I feel Holy has roughly the same chance of stopping Rocky late as much as Marciano has of stopping him. Evander can go through hell and back with Marciano, and there is no disputing his edge in skill and speed.
Holyfiled has no were NEAR the same tactic boxing wise as Walcott, there was no back peddle, shuffle, swifting movement for Holyfiled. Walcott has that in spades over Holyfiled.
No one fights like Walcott. He was very unorthodox, but on textbook boxing skill, when he applied it, I give Evander the edge over Walcott. Walcott's footwork is unusual and unpredictable, but for upperbody movement and blocking skills he wasn't any better than prime Holyfield, I give Evander the edge in jabs, and he was a better combination puncher. Walcott was also clearly defeating Marciano before the late rounds, until Rocky got to the 38 year old (perhaps older) champion in round 13. On technical skills, Holyfield is on Walcott's level, and probably a little better. His chin is also superior, and he is quite possibly stronger than Marciano, which would be a big factor in this fight.