It varies with the individual characteristics of that woman. Look for what compliments your facial features the most and base your "style" off of what works. This will make you achieve more compliments throughout the day, having the fact that you studied what works for yourself online and have applied a hairstyle that works to those recommendations.
Personally, I enjoy the feel and look of how curly hair is, I have also found straight and wavy hair a turn on. Like I said, it really does vary with the individual. Ultimately, make sure you aren't reducing the effectiveness of your facial features by choosing a style that doesn't work.
(So in conclusion, I like "curly with wavy" hair the most **Imagine a crimped hairstyle**)
it honestly wouldn't make a huge difference to me as long as she had pretty hair in general , the style of it wouldn't matter that much . mean if she was a nice brunette or blonde the style wouldn't matter much