You have 4 mages. You can't go wrong on spec. Everything should just die.

There is a lot of variety in prefered mages specs on this board, I would start with two different specs on your mages and see which one you like better.
The better spec for you is really going to depend on your particular game style.


Personally, I liked deep fire spec on both mages for leveling. You can burn mobs down extremely fast.
But that's just me.