The quiz you link is too simplistic for my tastes, but in a general sense I'd have to say that the CC element innates are a little disappointing, in that they don't extend much beyond a simple geographic theme. It takes some imagination to make anything of them--enough that one person's interpretation of the meaning of the colors is likely to be different enough from another's that direct comparison would be counterproductive. And as for me...I can't so much as rule out a single one of them for myself. I can think of pros and cons for all six.
Ah, but if I can't choose then why would I come into the thread and rain on your fun? Because, going by the CC bosses, I think I am best represented by White. And how is that? Because the Dragon God had the same curious quality of existing with a significant component of every color, that collectively added up to White. Plus, the music was cool. =P