I've looked at several guides, and all seem to be different on stat weighing. This is of course assuming you're hit capped.
The guide on here says:
Haste>Crit>Mastery
Max dps:
Crit>Mastery>Haste
Icy Veins:
Mastery>Haste>Crit
I'm so confused on what to do. On a side note, what would be the best OS for demo, that won't be affected by not reforging? I.E, demo gear for destro or affl and not being too affected.