I couldnt say personally, i'll be interested to see some lists though. I normally credit Ketchel with being the hardest hitter here.
in no order: Ketchel Ryan Fernandez Graziano (even at MW IMO= Zale Papke Briscoe Lausse Gardiner Fitzsimmons
Ketchel (I am a biased fan though) 2nd place is up for grabs but probably Graziano. 8 more? here are a few: Zale Fitzsimmons Benn Papke Pavlik current day.
Eugene Hart Thomas Hearns Bob Fitzsimmons Stanley Ketchel Rodrigo Valdez Julian Jackson Gerald McClellan Kelly Pavlik Sam Langford Rocky Graziano
Pavlik rarely throws big shots, just those hard straights. I think he has more power than Abraham, but Abraham gets off more powershots (namely that brutal uppercut).
Well, Abraham throws not often anything else but powershots but that´s due to his lazy style. Imo Abraham has more one-punch power while Pavlik makes up with the amount he throws.