I guess it depends on where that hair is located. I prefer it clean, neat and properly colored. Straight or curly makes no difference to me. So long as it does not look like Kate Goslens God forsaken crappy hack job, its all good!
I shaved it all of a few days ago...However, if I were to decide between the two girls as posted by OP, I'd absolutely go for the brunette!
Actually it differ from face to face, some faces look good with curly hair and some with that of straight hair. Anyhow I like straight hair as that of Chines people.
I prefer straight hairs than curly hairs. It is the beautiful type of hair that the different styles can apply.Curly hairs are difficult to apply different hair styles