The right hand that the Rock hit Walcott with puts any heavyweight of the Marciano-Ali eras down for the count. Ali's punching power was better than good, but not great. (The Liston 2 fight will always viewed as "suspicous").
Bull****. You can't say that that punch would knock out any heavyweight. Just because Walcott - someone who had been KO'd several times before, and floored several more - went down like a sack of ****, doesn't mean someone like Chuvalo, or Foreman, or Ali, or Wepner (yes Wepner), or Liston etc.... would get KO'd. Most pointless thread, obviously Marciano hit WAY harder than Ali.