Worldofwarcraft people plz help?

If your ok with doing the most dmg in the long run go with the warlock who has so many spells so many things you can do with a warlock and there the best at pvp. Use a warlock or if you cant handle the non dmg the fastest go with a fire mage who will pack on so much dmg it kills your target before it gets to you. I couldnt quit playing my mage for awhile but my warlock got boring after 65.