The Fool (spoilers for all RotE books, including LST)

[Nuytsia]

Also, the Pale Woman DID see the Fool naked as she stripped him of his skin (the skinning of the tattoos in Fool's Fate) and she also referred to him as a male.

Yes, I agree this is the other major point I can't get around in any argument against the Fool being a male (at that time, and when the PW previously knew him, at least). Even say she did know he was a female and was lying to Fitz, well, why?? I think she would have definitely tormented him with the knowledge the Fool was female if he was.

Still, other than pleasing some parts of my mind, it hardly matters. the Fool is the Fool, and is my favorite character in literature. and if truth to be told, is also a very major obsession of mine

I'll give that a big thumbs up!