Originally Posted by
Monkiy
No, this is wrong. Unholy has stronger prolonged AoE, but not by a grand margin, and it needs to be fairly consistent AoE (Galakras/Spoils). Frost still takes the cake in single target, varied cleave, burst, and target swapping. They are close enough now though, that if you're having trouble with an execute phase you may want to favor Unholy if you can spare the DPS earlier in the fight.
Unholy was never ahead of Frost prior to the hotfix, unless you want to consider high end raiders going back after gearing up to pad and get lucky streaks (both things that Unholy has a higher capacity for).