Lots of good info here, thank you!
I've only played a Fury to level 36 over a year ago, and a Mystic to level 18. So I really don't know much about healers.
Templar sure does sound good. I was looking at the buffs for both Defiler and Templar, and that is helping me decide too. As I said I might be duo'ing with a wizard friend. He kills while I keep him alive and do what I can to help with the killing part.
How different are Inquisitors and Templars? I've looked at both spell lists and they seem to share a lot of the same heals.