Bi/s, what do you think about these kind of girls?

I'm a huge tomboy, age 17. I dress very androgynous, while still wearing makeup and appearing somewhat female. I have toned muscles and with the clothes I wear, gives me a particularly masculine appearance. My personality is laid back and I have a good sense of humor. I behave like a guy, my mannerisms are very boyish, but chivalrous. I guess I'm what you'd call a "butch" . I asked my GF (after we've been together for about 4 months) if I was what she was looking for...and if she would have preferred me to be more girly or submissive, and she told me no, i prefer you. I understand everyone has preferences, so tell me, what do you like/dislike about "butch"/tomboy s, and what is your overall opinion?