Sword talent is a lucky thing, you can get the proc when you need it, maybe, you can get it when you dont need it. Maybe Sword is cool when you go pewpew some noobs in bgs with DBW, STS lucky proc comb. But going realy high in arena you need to controle your dmg.
Poleaxe is a bit better to controle dmg, because it improves some talents, but in the end it is just luck if you get the killingblow crit from poleaxe or not.
Mace with +10 Str gems = 400 AP, Recklessness + use trinket gives you the most out of a controled burst.