(because ... )
OA and XPH suggest 2 favored classes for a few races.
OA
Dwarf can go Fighter or Samurai.
Elf can go Wizard or WuJen
Gnome can go Wiz-Illusionist or WuJen.
XPH
Duergar can go Fighter or PsyWar.
Githyanki can go Fighter or Psion.
Githzerai can go Monk or Wilder.
Thri-Kreen can go Ranger or Soulknife.
I'm wondering if it would make any difference at all, if a build had
both and was using a 2 Favored Classes houserule?
To trigger the necessity for 2 Favored Classes requires a minimum build:
Class X 3 / Favorite Class A 1 / Favorite Class B 1
Or if you wanted one of the Faves to be the main focus:
Favorite Class A 5 / Favorite Class B 3 or 1 / Class X 1 or 3, but not the same level as B.
Complicating things further with Thrall Of Demogorgon 8 to get all
multiclass penalties waved would allow the above builds with:
... / ToD 8 / and 7 or 3 base class 1 level dips.
... Ideas