I see there have been some strong opinions expressed here, so don't hate me for bumping this one...

First of all, glad to see I'm not the only one who identifies so much with lesbians. Even as a preteen I felt this way, although I didn't really know very much about the community back then so didn't understand what it was that I was feeling.
Someone said that if an M2F cannot be called a lesbian then she cannot be called a woman. Very true! We're all what we are, not what we have. Just like I'm human and even if I had green skin and a face like Cthulhu I'd still be human.
So, a person can be heterosexual, bisexual, or homosexual. Well what about those of us who are in between? I've called myself bi for a while now, but am not sure it fits me that well, as I'm nowheres near 50/50 and a big part of me identifies as lesbian. But I have been known to like men too (e.g. my perpetual crush on Jimmy Fallon) and once post-op, I'd definitely want to have a hetero experience to see what it's like. I just am not attracted to nearly as many men as women.
More and more it seems to me that the thought of being close with another woman is soooo much more appealing than being with a man. So there's 2 reasons why I'm inclined to apply the label of Lesbian to myself. Right now, for the time being I've settled on: Am I primarily? Yes. Am I exclusively? No.
Which has led me to wonder, is someone who strongly prefers one gender to the other still bi? Does a person really have to be a Kinsey 6 to call themselves homosexual, or are the 5s allowed into the club too? How about the 4s?