I voted for more faces, bodies and scars.
However hair customization is missing from the poll, along with a more proper way to customize colors.
I voted the same. I’d probably have gone for better hair options over scars if I was forced to pick. (Though I don’t necessarily need more hairstyles, it’s just that I find so many of the existing ones unusable with pointy eared races because of clipping, which could be fixed with what I’d hope would be some relatively minor tweaks.)
I like the idea of height variation, too, but would prioritise build and the lack of height variation might not be so noticeable if there was variety in body shape.
I like the idea of bonds and flaws, but wouldn’t really expect the game to respond to them. It’s already incredibly ambitious. But a free text biography like in BG1 & 2 where we can fill in details of our characters, including bonds and flaws if we like, would be welcome.