I think it would be undeniable that FTMs would have a certain enhanced perspective on how it is to be raised a girl, and the reverse is true of the MTFs....I don't think that necessarily lends itself to be a totally accurate perspective however, I know I picked up a few things being raised as a boy, but I could hardly be said to really know the true male experience. I am not trying to knock anyone's experience just saying that we view things thru the lense of our own life.
I am just saying that I mean, I am not even accurate to things in my own life, I can pull out a journal from 5 years ago and read about something, and be just absolutely amazed by how inaccurate my current memories are of that event. This is why, I am hesitant to take anything people say, especially those in a different stage of life than I am in, at face value. This also makes me....skeptical about even my own advice if it is based on something not current.
I also feel fairly similar to Suzi's points; and I would like to point out, a large part of the reason why we obsess over clothes is the same reason why so many college kids binge drink- because we can now and we couldn't before. I bet, that most of these women will be totally obsessed with clothes and self expression for a few years, and much like those college kids, will mature and find it plays a lesser role in their lives as other things gain more traction in their lives.
I think we have lots to learn from each other, but I wouldn't go so far as to be critical of the views others hold on what being a woman means to them even if it isn't what being a woman means to me.