I'm currently leaning toward either: Pally/Resto Shaman/3xHunter or 5x Shaman. Despite leveling 10 or so characters to 60+, I have to confess that I'm a bit of a Shaman n00b. I understand they're quite a force and 20 badges in 3 hours is impressive. I also don't want to fight over the same gear on normal 70 runs, but I don't see much alternative outside of PVP. Would BS player-crafted armor be a decent stop-gap?

I may end up trying both. I also currently have a 5x hunter team that will probably be able to farm normal 70 instances at a decent speed.