Definetly Arms will outdo fury even in speed if you focus on items haste items.

Arms early on, if used right, is good at PvE but even better at PvP then fury. Also like I said you get items that boost your attack speed and you will by far out dps a fury spec.

Protection is great if you want to go that route once you hit level 65+ but to level you will want to go arms or fury depending on your style. Use other specs to level then respec as protection and you will get invite after invite as a tank for raids n dungeon crawls.