Hell, Imo Scout deadly rush is the best skill for a MH, with veracity r2 and that, no one escapes you
No manacost, 20 sec cooldown, etc
Fullhealer, Warden natural balance is awesome, but if you like to grind as FH, psi telepull is the way to go. Flame to aggro, telepull, smite and chain of light until dead etc
Caster healer, i cant say, ive never wanted to try one.
(no im not biased towards the reincarnations i have
but they seemed to be the best or way up there in terms of choices)