At 50 I'm totally sold on Fire/time. Very tanky. On an ITF +4 I'd run around and aggro mobs to bring them to the group. Wasn't foolproof, once or twice I got busy and did not re-up farsight and faceplanted, but very, very solid. Looking forward to incarnate and a little relief from the endurance puddle. I'm fully IOed up, which helps, but it still need a bit.