Well since you are on US i cant really tell how the activity is. But i can help you out in a choice of class. WW Monks and Enh shamans are probably the most underplayed classes. Tho, Enh shamans with dubble elemental force makes your lightning shield, able to kill players faster then they can kill you. Back to WW monks, they are not many of them, but i think that they could be very good. When you get to know your char. Hunters as most people know are always one of the best classes. They got both very good burst and spread damage with serpent sting, but they also got good defensives. Roar of Sacrifice make you able to survive bursts much better. Since pretty much all classes use 100% crit they will have hard time attacking you. Hunters are also one of the best classes for Bg's both locked, unlocked and wargames. Feral druids are very got if you play it hybrid, with that i mean: spec resto but use full feral gear. I recomend 100% crit and rest haste. That makes you a got hybrid. BM Monks are very very good, they are in most peoples opinion the very best FC for WSG. With one of the best mobilitys and CC they can keep enemys far away from there team and carry a flag without need of help. They are a goos choice of not the best if you are intrested in stacking hp and FC. All casters are very good atm. Casters can easy get 100% crit and with spellpower stacking do very good crits. The healing specs are atm a bit underplayed because of "battle figgue"(60% less healing in combat) but i can really recomend, Mw monks, Resto shaman and Resto druids if you want to play healer. As a runner up i would mostly recomend you any of the Monk specs or Hunter.
Once again i play EU so i cant really tell how the activity is. I recomend you to contact "Sponsor" he is probably one of the more active 10 twinks on US, he also got many friends around him so you can find players to play with if you contact him.
Hope this helped you.
