Coming in at No. 15: Sienna Miller's Straight Hair

Here's how guys ranked her hair on a scale of 1 to 10:
Sexiness: 3
How Fun She Looks: 3
How Romantic She Looks: 3
Likeliness of Asking Her Out: 4

Here's what they had to say:
The good: "It's nice and straight, looks really soft too."

The bad: "Looks a little 'unkempt' or slept on, 'fried' from coloring maybe."

The just plain weird: "Hey lady, here's five bucks, go buy a brush, will ya?"