You'd have to say that that power tells as the fight goes on. Napoles was never the strongest physically even at 147 and while Jackson is more about punching power than using physical strength to impose himself i think the power will tell. Napoles is streets ahead as a boxer though.
i agree and i've argued it before but the backus fight was telling. even at his peak napoles was more aaron pryor than ray robinson: a lightweight not a welter. and you're bang on, jackson rarely imposed himself physically. at 154 though, napoles is just far too small and though he had fantastic power, wouldn't be in the same realm. i'm not sure how his speed would be at this weight but he was just run over by monzon 6 pounds higher. i'm copping out and saying it depends on butter's game plan: if he's mobile, stays slick, picks his spots with the brilliant left and stays out of the danger zone he wins this 10-2 or 12-3. if though he ever elects to trade or go for the kill, he's sparked.
To the guy who said that power will determine this one...dead on! Jackson will turn up the heat and the Butter will melt.
Jackson was the definition of "puncher's chance". He may not have had the most amazing technical skills in the world (not that they were awful) but all he needed was one flush shot to take you out. That power was otherworldly. Eventually Napoles is going to get hit flush. Jackson KO.