The culmination of my experiences PvP'ing in WOTLK. I'm always trying to find new ways to make fury work, and never has it shined as well before Titan's Grip (well, since the end of Vanilla I guess). Please keep in mind this is NOT a skill video, but a spectacle of entertainment.
In terms of arenas, I can definitely say that fury is viable, but not if one wishes to shoot for above 2200. It has huge, I mean HUGE burst when whirlwind -> bloodthirst -> slam proc, all critting with auto attacks and heroic strikes thrown in. Yet the spec just lacks the utility, a reliable healing debuff, and the added effect of unrelenting assault. Plus, the hit penalty definitely hurts when dual wielding.
How will things fare in cataclysm? The majority of pvpers tell me WOTLK has been their worst experience pvp'ing in the game thus far. We can't say for sure. The main thing to remember is that at the end of the day, it's your $15, so spend it playing the way you want, and don't listen to the haters.
Fight on Warriors.
Edit:
for those who keep pm'ing me:
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Dynasty Warriors 6 - Dawn of the Wish