Enrage gives you whooping 25% haste, what 6% are you talking about?
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I've also provided you with all the numbers in the post you quoted - that's exactly how much damage arms does by warbreaker + BS, and how much damage fury does with enrage+death wish (and if you've got this pvp talent and put warmode on - you are fullstack deathwhished all the time) +BS. It doesn't do twice as much damage all things considered.
I am also fairly sure that fire mage AoE > arms AoE, thank you very much, why bring this "your AoE" thing here?