I understand that templar still holds the crown as number 1 healer, I have both a templar and a warden. I tried healing with warden but templar still holds the crown, warden feels more clunky in the animations and falls short as a healer against a templar in my opinion and many others I've asked.
However my warden just collects dust as my main crafter now, I'm thinking of building him into a tank. But I'm not even going to bother if it turns out I gimp myself and may as well turn to DK tank.