My honest opinion is once you remove the healing / fear protection of a shaman... and start looking at non hybrid pure dps classes to box in pvp... nothing tops locks. I would give it some thought before rolling hunters (which I did and I dont enjoy that much... hunters suffer SO MUCH from close encounters / melee) You will be so sick of dealing with melee after 1 day that you wont play the hunters again. Mages.. meh I dont see the advantage here at all. If I'm going to play a caster class whose spells arent instant and all require casting... I'll just play my shamans... the play style is so similar anyway it wouldn't be that refreshing.
Thanks for the opinion there.

I wanted to add locks to the poll but forgot :P After I had written the post I dropped mages pretty fast cause they cant do anything except pewpew hard and die hard :P I will replace 4x mage with 4x lock.

Junglelove,

-Menthu