Rumble has more power than a lot of heavies, but the statement he has more power than "any HW" is highly questionable.yes, because the future is so certain you can just call it.
the facts though, are this: Arlovski survived multiple strikes. Rumble had an extra 10 secs. if Rumble has the power of most Heavyweights like the guy i quoted said, Arlovski would've been KO'd by the first 1-2 punches.
therefore, Rumble does not possess the power of most any heavyweight because most any heavyweight would've KO'd Arlovski with the 1st 2 punches.