Thanks for the input, guys, much appreciated.

I decided to go with a 5 Warlock team, but have been thinking more and more about it today. Obviously, it's a lot easier to level
5 characters at the same time if they are all the same class, as the macro'ing is minimal and all the same. But, while the Shaman
were easy and the Warlocks have their own tanks, I've been worrying about the other classes I want to level.

Eventually I would like 1 character of each class on each of my 5 accounts. Hunters are going to be easy, Priests, hmm, not sure.
Mages I can imagine will be a pain in the arse, nice damage but little survivability.

So I've got to thinking about leveling up multiclass groups. Perhaps using a 2 x Hunter for pet tankage, then 4 x another class that
needs dragging up, like Pala/Warrior/Rogue etc.

How did you all do it?