New Team...Need help deciding on the 5th

Im currently Boosting 4 new shaman atm using RAF.

The goal is to fivebox. Ill run 4xElemental Shaman and a tank. I wanted to share what I think my current options are and pass it by you guys to see if Im missing something. The purpose of the Tank is to make my fivebox successful in PvE with the ability to transfer over into PvP (more of a nice to have). Correct me if Im wrong on my understanding of class abilities too, this is from what Ive read and come to understand (which isn't always true).

The Plan is to level the four shaman to 59 and then level three toons on my mains account to 30 and grant them 60.

So with Dual Spec coming out in the future. A five box with a Druid tank looks like it will be the best choice. An alt for my 4th shaman. Boomkin Aura, fear mitigation, high armor plus, roots, + trees, while still keeping all my shaman greatness. And Ill still have a good tank for PvE. My biggest worry is that the druid not having any AoE tanking abilities is going to make instances hell. I dunno...Crusader Aura sounds nice, Boomkin Aura sounds like more fun. Any input appreciated.

I think Paladin is still the best choice. Druid is certainly a choice.

PS druids can AoE tank. Just not as easily as Paladins.

DK, aoe tanks with death and decay, heals self with attacks, increases spell dmg the target takes by 13%.

With three toons to grant levels to, why not try a paladin, druid and some other DPS class -hunter, lock or mage? Then once you're done, start a DK and see how that feels. I currently use a paladin for a tank and I enjoy it. I was never a melee type but I actually enjoy playing a paladin. You might run into some limitations with a druid tank at some point, but others would know more about that - maybe due to gear availability??

Also, you can level your shaman to 60 and grant to 60.99....I am pretty sure, heck I already forget =) There are other threads on this you can search for to confirm, but I am pretty sure this is what I did with my second batch of toons (didn't think you could when I did my first batch).