Right now I'm running a group with holy priest, arms warrior, and prot paladin. It's a ton of fun and I've been able to handle everything I've come across. I can easily take out camps and elites other people wouldn't dare try. And once I out level certain dungeons, I'm going to try running them.

I'm also leveling up a group with a resto druid, rogue, and feral druid for eventual stealth runs. I haven't gotten very far with them yet, though.