Well, my hunter really wanted a Feral Bear as a pet.

A shaman is a fairly decent healer, in that you wear mail armor and carry a shield.
That's a lot of defense.
You'll eventually have Earth Shield on yourself.

Your chain heal, will hit whoever is hurt the most (the one you target) and then automatically just to the most injured.
The only issue in BG's, is if you are spread away from the other toons.
But for PvE, this will work quite well.

You'd pick classes with good melee synergy.
You have Windfury for melee haste, Strength of Earth totem for Str/Agi.
Water and Fire are your totems, probably Mana Spring if you go Earth Shield or Healing Stream when you go Water Shield. And Flametongue totem is probably the best fire totem for anything.

Riptide is your only instant cast while moving.
But if you plant yourself in place, and have a lot of high dps melee..
Not many will want to come to you.
With decent Res and Health, bladestorm won't take you down a whole lot.
And a resto is a very good pvp healer.