separate them into an account by account list and we might be able to give you some advice..
unfortunately from the looks of it however you mostly have melee classes which will be nigh impossible to box properly.
u have a lvl 62 warrior ..lvl him to 70.. go fury.. and use him to lvl up ur other accounts (boosting) the other classes should be casters (makes things easier), a mix of healers/dpsers or hybrid casters.
alternatively lvl up your pally for imba AoE tanking.. using one of ur high lvl characters if you can..