Leaving aside using a 2H weapon, I was wondering whether the extra 30% delay would make DW produce less dps than a 1H. Based on the following variables:
Weapon 1 = DR 120 = W1DR
Weapon 2 = DR 100 = W2DR
I used the following formula for 1H:
Hit = W1DR + ((Targets - 1) * W1DR)
and the following for DW:
Hit = ((W1DR + W2DR) / 1.3) + (((Targets - 1) * W1DR) / 1.3)
Based on this came the following results depending on number of targets:
Targets DW 1H
1 169.23 120
2 261.54 240
3 353.85 360
4 446.15 480
5 538.46 600
So assuming there are 3 or more targets in an encounter and they all die at the same time, it's better to use the Mythical and a board over DW. This doesn't take into account any stats on the OH weapon or Shield, min max dmg for crits and is using a 100 DR OH weapon with the same delay as the Mythical (3 sec).
Although a higher DR OH weapon will enhance DW, 1H with the Harbinger of Malcontent (
Xanadu Community) gives a really big bonus to 1H (7DPS, 7DA, 3MC & increase in base damage of AF stance).
Would be interested to know if my formulas (ae) are correct or not!