My biggest problem with the circle instead of cone is that it's not intuitive. It makes some sense for the tank, since a few mobs circle around them anyway. I get why they changed the warrior for that, though I miss that being varied, too. But for melee, it means we have to go in, stand on the tank, & hit the same circle. A cone meant positioning reasonably. If you position your circle opposite the tank, you can easily miss the mob's outer layer. A cone handles that so much better. (I hate the line aoes, however, since the mobs manage to move JUST as I hit it)