This is mostly just for fun, bored during a conference call at work.
I'd like to create a leveling team for specific tank and healer something like the following;

Warrior + Shaman + Hunter + Hunter + Hunter
Death Knight + Druid + Shaman + Shaman + Shaman
Druid + Paladin + Mage + Mage + Mage
Paladin + Priest + Lock + Lock + Lock

Maybe...
Paladin + Priest + Priest + Priest + Priest

Are these wise? How would you do it different?