Now that my DK+Rets are fairly well geared out I'm considering another team more focused for rated BG's.

I was thinking of Druids. I love my Rogues at 68, but I hate not being 100% self-sufficient as a PvE team. Having no heals, no ability to tank and no rez makes me steer away from them. There's always ways to work on your PvP gear with PvE :/

The other consideration was 4x Warlocks and a Shaman healer. You'd get fear protection, nice mitigation, and awesome ranged damage.

I'm just thinking about what would be fun, manageable, and competitive as a BG team:

5x Druids (Probably Ferlol)
4x Warlocks/1x Shaman
4x Rogues/1x Druid