I'll hop on the "Heals are too powerful" train too. This is the first game I've seen where the healers offensive power is being completely gimped because of their healing power. So far I've only played frontlines and at least there the healers make things fairly meh.

I'd say give the healers back their cleric stance and hit the healy spells with a fairly heavy nerfbat to up the bodycount.

Edit: Oh yeah, the silliest DPS bursts might also need some nerfing if the heals would get nerfed. Which would be fine IMHO