Final team composition

So, thanks to this wonderful community and all the advice I received when starting up, I am now at the point where I actually need to make a call on how I want to 5 box. I went from dual boxing my priest and paladin, to 3 boxing 2 characters through RAF and now its time to start going for 5. My problem is I have quite a couple of characters at my disposal and I need some advice on which would most likely be the easiest or most fun to 5 box.

There are 2 characters that will be in any setup that I choose, these being my Priest and main Paladin Tank.

I would appreciate some advice on adding either 3 retribution paladins or 2 retribution paladins and a mage. Making the final composition either 4 paladin/priest or 3 paladin/priest/mage.

I'm thinking that having the extra mage buff, portals, food and range dps would be nice but managing 4 melee a lot easier.

You thoughts or input?

Level as many teams to 60 as you can (before totally burning out) while your RAF is active. If you don't, then there's a high probability you will do as many of us have (including myself) and spending money down the road to relink accounts or transfer toons.