Prettiest color for my prom dress?

This is the dress I want to have for prom and it originally comes in this coral color, but idek if I want that. I am deciding on if candy pink or watermelon is a prettier color. My boyfriend would like to wear a black and white tux. So, what color in your opinion would go best with his black and white accents? My skin complexion is about the same as the girl in the picture.