Most Helpful Guy
Aesthetically, I find B and C more pleasing. A seems somewhat excessive to me. But most guys will tell you that it doesn't matter, especially if you're in a relationship, your hair won't really be his first priority. You shouldn't be worrying about what other people think of your hair though.. it's better to don the hairstyle you want, so that people look at "you" and rather than others opinions.
Most Helpful Girl
In France they prefer shoulder length. When a girl have very long hair a lot think she's superficial.