4x ele sham + 1 druid - what to spec?

I'm leveling 4 elemental shamans to run with my 80 druid main. What I'm wondering is what spec would be ideal for my druid? I'm keeping PVP in mind. PvE I'll dual spec 1xferal, 3xele and 1xresto.

Feral - no range gap which opens the team up to damage faster. stealth doesn't help with four unstealthed behind me. cat form speed increase messes up FTL. doesn't seem ideal. cats also seem pretty squishy. matching rotations with the shaman seems like it would be a nightmare. i suppose i could bear tank to sponge up dps, but comparing to a tree that could be healing makes this seem to fall short.

Moonkin - ranged dps. not terribly squishy. typhoon doesn't do anything thunderstorm doesnt. roots would be good for keeping distance. dots would match shocks, but with no cooldown i'd be again playing with a rotation that would need some tweaking.

Tree - good healing, cheetah could be used with instant cast ghost wolf when escaping. possibly a little too redundant with chain heals from the team? not sure if the dps loss would merit a dedicated healer running up front. We all know how crappy things go when the leader dies though, this seems the best way to prevent that from happening of all three specs.

Any thoughts or previous experience with any of these comps? I'm leaning towards tree for pvp and feral for pve. Feel free to discredit anything stated above, these are just thoughts and brainstorms not tried and true observations.

-Cheesepile

I would probably go 4x Elemental on the Shaman.
You can go 1x Resto, but 4x Elemental will easily cover all 5-man healing.
And as Elemental, you'll kill a lot faster and do heroics in less time.

For the Druid, dual-spec.
Go Feral for heroics, or anything you need a tank for.
And go Balance for PvP.
Again, the 4x Elemental will be plenty of healing, so the Balance won't need to drop the form to heal.
Pretty much manage Eclipse on the toon you are actively controlling, with Shammies as slaves.
You'll run Balance/Elemental x4, for most PvE and for PvP, with a tank when you need one.