My initial back of the head idea was building a field-able army at 3,200 points for every army in fantasy 6th edition. Then the special characters, then factions kicked in, then the Storm of Chaos lists... I kind of went overboard, so I ended up with (minus a bunch on the painting table):
Faction/points/Variant lists
Dogs of War 6,000 points all RoR and special characters as it matches my idea of the army the best
Vampire Counts 15,000 points Can be ran as all five bloodlines plus a pure necromancer list
Hordes and Beasts of Chaos 23,000 points Can be ran as full mortal, beasts, or daemon with any god as lead
Orcs and Goblins 10,000 points grimgor's ard boyz, or full goblin
High Elves 7,000 points haven't bothered with the lothern list
Dark Elves 10,000 cult of slaanesh
Wood Elves 10,000 elf or pure tree spirit
Bretonnia 7,000 can run RAF list if I want to be a jerk
Lizardmen 6,000 Lustria
Empire 8,000 working on middenheim list
Skaven 12,000 Skyre, Hellpit, Eshin, or Lustria Plague
Ogres 6,000 Rhinox
Tomb Kings 5,000
Dwarfs 14,000 Slayer