I'm running 1 Prot Pally + 2 Ele Shaman + 1 Resto Shaman.

This is a great setup for me because I'm still active in my guild and play Prot for any of the PvE stuff, while I do BGs with great Shaman support.

And if I do heroics, I can pick up any one of the dps, and I sometimes drop my shamans if there are other guildies needing something out of a heroic.

I've been grinding BGs for honor and some gear for the shamans still.