Healer through and through. I love the feel of it. The whole group depends on you, their lives are in your hands and you must take care of their fragile bodies ( yes, from the healer's point of view even the tank is a glass which you must carefully mend, or it will brake to pieces ). Not to mention you are always needed, I have rarely seen anyone say "no" to a healer.
i have tried tanks, melee DPS and ranged DPS and nothing, absolutely nothing gives me as much satisfaction as being a healer. God, I love healing.