The Chosen was a great Tank from what I played during the Preview Weekend with quite a few options open to it. Add in Tactics and the Debuff attacks you get WITH aura's and it starts to get powerful. At level 17 (top level I was before servers came down) I was sitting at 406 Str with my Aura up and simply wading through anyone who wasn't a Tank in PvP. When changed over to my Tanking gear (Less Str, more Toughness/resists) I could get upwards of a 50% magic absorb and 60% Physical and last forever with people Focus Firing on me.