I haven't bought any... yet! But for my first two I'm eyeing a boy and a girl, from the same manufacturer. I might even buy them to ship together if that doesn't spring a leak in my wallet. I find that I'm drawn most to feminine-looking boy sculpts (and to be fair, there certainly are a lot of those) and very feminine, but sinister, girl sculpts. There isn't a huge difference between my preference for either gender, so I imagine there'll be a pretty even split in future in my collection. However, as long as I can dress and style them however I want, I doubt there'll be a noticeable binary anyway!