Okay, here you girls go, an opinion from the other end. Being an FtM, I started out figuring I was a lesbian, because I didn't think the process of going through hormone therapy, etc was as acceptable as I have now found it to be. I spent a year hanging around the only lesbian bar in town, and met my 2 best friends there--- one is a bisexual chick with whom I had a brief relationship, the other is a lesbian who was in love with me until she kissed me and realized what I had already known: there was absolutely no chemistry there. Actually, the only woman I've ever slept with was a lesbian, but that ended badly... no need to say much more.
However, since I have come out as TS, lesbians no longer want me. I was always what people might consider "butch" (because, despite the labels, I was always FtM), but now, they're not interested. I don't know if it's the thing about my having a predominantly masculine personality, or the fact that I'm not interested in the same type of sex they have (as opposed to typical male-on-female). Now, I've never been incredibly attracted to lesbians, mostly because of the sex thing and the fact many tend to appear very masculine (and I'm predominantly attracted to very feminine women), but it seems odd to me that they would reject an MtF because she was once a man, but also an FtM because he does not consider himself female, though he still has the parts. For me, it's little loss, because I prefer the straight chicks anyway, but it seems pretty paradoxical.
And as a straight man, whom some might call a lesbian because of my current problems with, well, those pesky female parts, I would have no compunctions about dating an MtF. For me, it's the inside that counts.
Rafe