Need 2 Boxing Help (with RAF)

Hello,
so i've been thinking about the best classes to level up with 2 boxing.. What are the best combos? (Just different classes plx.. or maybe an "imba r0xx0r" setup like shaman+shaman or something like this)..

I've allready got:
- High level Druid
- High level Priest
- LvL 45 hunter (<- ill spend my raf points till hes 60)

I've leveled a 2 boxing combo allready (till lvl 30): (WITH RAF)
- Ele Shaman + Frost Mage
The reg time is annoying me.. and would it be better to lvl enhancer+frost mage? I want to get 60 very fast and im wondering if i could get there faster by rerolling classes..

so long

I've now leveled up groups of shammies, druids, palis and magex2/priestx2 with RAF. The first 3 are at 60, I'm working on the last one as we speak.

I boosted the first group to 40ish then quested. With the others I just quested, I simply couldn't take any more instance boosting without my brains coming out my ears. Anyway, I don't think class makeup makes a very big difference. With 2 toons doing all the single player content (using QuestTracker and TomTom etc), you kill them faster than they can spawn even if you have no aoe. I still spent most of the time traveling from place to place rather than actually killing stuff. So, my take on this is: don't worry about what classes they are, worry more about quest and travel efficiency because they will contribute a greater amount to your overall /played time.

If you can stand it, and can fill out your group to 5, boosting is still way faster. I just couldn't take it any more.

No, 5 Boxing is too expensive^^
The mage and the shaman are pretty undergeared, and im new at multiboxing so im dying often (but anyway im leveling double speed than normal - lvl 30 and 12 hrs played.. for me i think its a good time^^)
Now im trying to level to 60 with those chars - as fast as possible (ive got my lvl 70 priest leveled to 80^^)

For RAF boxing any setup is good. You are not going to grind nonstop for hours, so you really do not need all that imba dps. You will be doing quests.

If you're not being boosted, questing is the fastest leveling especially if you quest-stack.
Two of the same class will be a lot easier to box, but two classes is not especially difficult.

If you were to cover the tank and healer role, you'd have the basis for a group as dps are easy to find, while generally tanks are harder. If you went this route, I'd suggest a healer who can dps well and a tanking class that can dps spec, at least for the leveling up stage.