At a glance:
- MS > BT
- weapon specs+AM =~ flurry (assuming ~10% crit i.e. ~35% uptime)
- TM >> imp.slam, Tactical mastery is usually overlooked, but it becomes a huge talent at lv36+ since you can stance dance whirlwinds without wasting rage and sit in battle the rest of the time for overpower procs and 10% less damage intake. Whereas a fury warrior in single target is going to be forced sit in battle and rely on imp. slam which does less DPR than WW. In multi target, you're getting raped in berserker stance since you need to WW and you can't overpower either.
- DW + Impale + imp. OP <<< Enrage (by around 12% DPS bearing in mind you can't get perfect enrage uptime and bearing in mind that given a ~12s kill time deep wounds DPS is valued at 50%)
- imp. rend + deflection < cruelty
- going by the way I framed it: death wish, booming voice, piercing howl, blood craze are the defining fury talents
- sweeping strikes is the defining arms talent
- arms weapon specs can be limiting so be prepared to potentially shell out a tiny bit of gold for respecs, also mace spec is just bad
Imo the most reasonable approach would be going fury for enrage and then a respec at lv 30 for sweeping strikes. When you spec SS, you grind 2 mobs at a time which is certainly more efficient than fury if you can kill mobs with those 5 charges and synchronize your downtime with the SS cooldown.
Talent builds for reference:
Arms:
http://db.vanillagaming.org/?talent#LMuxdAio0z
Fury:
http://db.vanillagaming.org/?talent#LZE0zu0voVo
If you're still wondering why 2h fury is superior to DW it can be boiled down to a few things:
- Slam. If you're fury specced before you get tactical mastery, battle stance is ideally the way to go due to overpower. If you want to sit in battle you need an ability to burn your rage with that isn't heroic strike, imp. slam fills that void.
- Cleave is far superior with a 2h
- A 2h is slow, so you will get roughly 20% higher flurry uptime due to the low crit chance that you will have while leveling
- Due to the speed you can achieve higher enrage uptime since you will have more time between swings to sit
- People mention hit rating, but in reality this doesn't come into play at all
If you're worried about tanking dungeons, it comes down to how much you value tactical mastery compared to piercing howl and slightly better tps thanks to enrage and flurry. Prot spec is not required by any means, it's hardly relevant for UBRS even.