Actually, how about this - all major characters (except those I forgot) on a two-trait system, by order of appearance:
Qui-Gon - Cre/Phi
Obi-Wan - Pro/Spi
Gunray - Exp/Fin
Padme - Cha/Pro
Jar-Jar - none; actions determined randomly/according to most (self-)destructive course as per barbarian civ
Artoo - Ind/Pro or Cre/Pro
Anakin - Agg/Pro
Threepio - Phi
Senator/Supreme Chancellor Palpatine - Cha/Org
Yoda - Phi/Spi
Mace Windu - Agg/Spi
Darth Maul - Agg/Agg
Jango Fett & Boba Fett - Agg/Fin
Dooku - Cha/Org
Grievous - Agg/Cre
Emperor Palpatine - Imp/Org
Darth Vader - Agg/Imp
Leia - Cha/Pro
Luke - Pro/Spi
Tarkin - Ind/Imp
Chewie - Agg/Pro
Han - Cha/Fin - later, Cha/Pro
Jabba - Org/Fin
Veers - Agg/Cre
Lando - Cha/Fin
Mothma - Cha/Org
Some are repeats, but that's okay because the traits are meant to emulate national characteristics rather than film characters' personality traits.
Qui-Gon - Cre/Phi
Obi-Wan - Pro/Spi
Gunray - Exp/Fin
Padme - Cha/Pro
Jar-Jar - none; actions determined randomly/according to most (self-)destructive course as per barbarian civ
Artoo - Ind/Pro or Cre/Pro
Anakin - Agg/Pro
Threepio - Phi
Senator/Supreme Chancellor Palpatine - Cha/Org
Yoda - Phi/Spi
Mace Windu - Agg/Spi
Darth Maul - Agg/Agg
Jango Fett & Boba Fett - Agg/Fin
Dooku - Cha/Org
Grievous - Agg/Cre
Emperor Palpatine - Imp/Org
Darth Vader - Agg/Imp
Leia - Cha/Pro
Luke - Pro/Spi
Tarkin - Ind/Imp
Chewie - Agg/Pro
Han - Cha/Fin - later, Cha/Pro
Jabba - Org/Fin
Veers - Agg/Cre
Lando - Cha/Fin
Mothma - Cha/Org
Some are repeats, but that's okay because the traits are meant to emulate national characteristics rather than film characters' personality traits.