Mage
Warlock
Shaman
Rogue
If you do however insist on going Hunter than I'd advise you play with a tanky pet so your group can fight 2-3 monsters at a time much easier.
I'd consider Troll and take skinning.
If it's hunter it will definitely be troll with skinning - I've only ever levelled hunter solo; in a group situation would it be better to go marksman and just use pet as a meatshield?
A well used Raid spec is Trueshot Aura in Marksman, Sure Footed (3% Hit) and Deterrence in Survival and left over points in Aspect of the Hawk.
I think the only issue you would find is that you might not feel any noticeable power gains from talents until you get Aimed Shot at lvl 20.
If you feel you're going to end up playing solo on days when your friends are not online then you might find Marksman less optimal.
You might get some millage of improved Aspect of the Pack with your three man comp, so that could make BM slightly more viable.
If you go Troll, with skinning and plan to go Marksman then I would pick up your 3% extra dmg to monsters on your way down the Survival Tree towards 'Surefooted'
Disclaimer. I don't play hunter. I just have friends who do.