Clases

Hello everyone!
I have a problem that really boders me, so i wanted to ask for some help here. I can't decide what to play in game ( class, roll ) since i got every class and i know to play each of it. I also like all roles ( tank, heal, rdps, mdps ) but healers are the last on my list :-)
So i wanted to ask you guys / girls what do you think is the most needed or rarest class and roll on server that is quite fun to play? I would really apriciate any coments or any suggestion so feel free to coment whatever you think is the best solution. Thank you!

Dk tank, demo lock and sp priest or mage.

Thank you mate!

Since healers are off of your list...

Do you prefer melee or casters? What about tanking? I started WoW on a rogue, but after I made a spriest don't think I'd ever had another melee class.

I sad i like everything mele, casters, tank and eaven healers a bit but they are lowest on my list ( so i probably won't play them ). Anyways thank you for telling me what you play and your oppinion! :-)

Shaman is the best class and kind of rare.

Druid also seems to be somewhat rare.