Thanks for all of the replies.
I'm leaning towards the PWP or the new PMM. I thought PWP was going to be the color. I've seen it live and it looks good. However, I've been seeing the silver in pictures and it's looking excellent too. I also like the CBP, but I agree with hotrodminivan in that it can obscure cool details in its design.
The CR-Z is such a stylish looking car, I want to pick a color that compliments or enhances its modern edge.