So I recently transfered from Icecrown, and I'd really like to get back into Arena. 2v2 is a bit painful, but I've been told that Hunter/Druid does fairly well. I made it to 1570 with a Resto Shaman, but as you all probably know, they're the two most gimp classes for arena. 

3v3 - Made it to 1609 before I transfered with a Resto Shaman/Demonology Lock or Ele Shaman/Dist Priest. We could have gone higher, but my roommate, the Shammy, had GF agro problems. He was going to quit soon anyway because he was going off to law school. 

Currently, the strongest 3v3 team is Rogue/Mage/Priest. Yes, Hunters are still a tad bit gimp in 3v3, but with good group synergy, it shouldn't matter too much. My spec would really depend on the class of the other dps. MM would work better with another physical dps, but Survival for anything else. I'm pretty good at either of the two specs. 

5v5- I haven't been on any teams for 5v5, but Hunters are the least gimp in this bracket (yay). I talked to a Hunter on Icecrown about his team (Rated ~2400), and he gave me a few tips. 

If anyone is interested in forming a team, or has a spot on a team, please let me know either in game or on the forum. I currently have ~770 resilience, but normally mix up a few pieces for around 500-600 depending on the comp so I don't gimp my damage too much.