obviously mostly depending n gear but i mean out of all these which is best?

Tanks - Warrior or paladin and why. putting aside that paladins can heal. ( thta isn't very fair )

Healing - priest, shammy, Druid

ps- also is the alliance any active
haha i didnt mention pally cause i only mention the classes i actually intend to use for that specific role. i dont like to use Holy pally's been their done that. ( badexperienced)

as for the DK - sadly im on a new accunt/user my old one got hacked by friend in real life ( no longer fiends obviously) but still i havnt any toon besides a lvl 1.