What class is most looked for in raids?

On our server, we tend to need a lot more healers, and also for the dps class they love hunters becuase of their craps, good for croud control

It differs from server to server, some servers may have an overpopulation of tanks or healers(highly unlikely), while others maybe have an extreme lack of them(since everyone wants to be DPS cause it's the easiest job around)

Either way, I think the best option is to look on the trade chat and see what people ask for commonly, if you see alot of people going "LFM for <this and this>, have everything just need tank!"

If you see this ALOT? I would personally make a tank.

Tank classes:

Warrior(Protection)
Death Knight(Blood)
Druid(Feral)
Paladin(Protection)