Suppose Bungie increased how much you can customize your characters face dramatically. How would you customize your chatacter? Would you make your character very unique? Make the character look like a famous video game character or real life person? Or would you try to make him/her look like you as best as you possibly can?
My favorite character creator in a MMO, would be Aion, there was so much you could with it. My guy was was really short with really long arms that went to the ground, it was hilarious.