What's the reason behind 2hb sucking on high AC targets? You often get low damage hits so the extra delay is a waste? Outside of high end raiding are those targets common?
Also someone mentionned little is known about the 2h bonus formulas. How accurate are the damage calculators
like this one out there? I understand nothing beats a parse but one can only parse if they already own the coveted weapon.
As for OP, if it wasnt clear enough, 2HB win over 1HB until you're in your high 40s because the damage bonus only starts kicking in significantly at that point. Even then dual wield means your offhand will still miss a fair bit so a very good 2hb can still win especially if you consider ripostes/damage shields/hate generated.
Offhand has no damage bonus so ratio always wins. As for main hand, speed often rules as faster hitting weapons mean taking advantage of the damage bonus on each hit more often, meaning faster weapon can often outdamage slower weapons with a better ratio to a certain point.