Taking advantage of epic rolls, I'm throwing together a Gestalt Paladin/Warmage

Rolls: 18, 17, 17, 15, 14, 13

I'm of two minds about stat arrangements: (Str-Dex-Con-Int-Wis-Cha)
18, 13, 17, 15, 14, 17
or
15, 13, 17, 17, 14, 18

If I can persuade DM to use the reduce LA rule from Unearthed Arcana, Here are the proposal for an Aasimar PalMage:
18, 14, 17, 15, 15, 19
or
15, 14, 17, 17, 15, 20

So my questions are:
1. Which stat arrangement should I pick? Would you arrange them differently?
2. What feats should I pick up?
3. Which spells should I learn?
4. Should I dump every ability raise into Charisma?