No comparison. You have Marciano weighing in at 190-195. Not even close..Rocky had unbelievable power. 43 KO's in 49 fights, those a Forman like numbers minus 30-70lbs. Had Rocky weighed 210 he would have killed The Brown Bomber and Jersey Joe. Who knows just how devastating he could have been with todays technology. I mean he broke guys arms when they were blocking his body attack...SCARY...