I am an absolute glutton for punishment, I love healing and I have a max toon on "release" of each one. (almost all the tanks too...) I fell in love with prolonging the inevitable as an Undead Priest back in 04, especially when out doing world PVP with @Cletus except, most, of, that, was, on, my, warrior... but I digress... I do love helping someone stay in the fight as long as I can. It's a challenge and its a lot of fun to me!
I am really torn with Classic though, I ~was~ planning on revamping the UD warrior role, but I have since settled 110% on UD priest. However, I am not exactly sure on Disc/Holy/Shadow... I loved how dominant Shadow could be in world PVP, but being a really solid disc priest (I was / still am) is a major ego trip going 2v3-4-5-6... too much fun, but my first love will always be Healing as the Bad-Bad-Dolamite!