I would also like to argue that it's not so much about "favorite thing about being a girl", that actually looks a bit fetishist, there are obviously advantages to being a girl and to being a guy but in the end I don't really think in terms of what's good about being a girl or a boy. It's more like you either know you are or you don't, I don't question that much of it anymore than being black-haired person, or being white.
There are sure advatanges to being a woman but, in my experience, this is never about acquiring certain benefits women have. Especially because the suffering, all the hard work, is only worth if you are aiming to be your genuine self, not to wear heels at the end of day srsly.