Arms if you like massive hits but it's absolutely devastating if you miss a swing(2H) or Fury for smaller hits more often but A LOT of misses(DW).
The one thing about Arms is that it focuses around specific weapon types which sucks for leveling because you can only choose one of them OR none of them. You don't want to be respeccing at low level every time you get a new 2H weapon type.
You can build around that limitation though,
http://db.vanillagaming.org/?talent#LhGedAbo0zVVuVzThat spec is less than ideal obviously and would be changed once you it 60 and get a new weapon