I was trying to find something that wouldn't end up looking like alphabet soup, or just obscure when spelled out.

What about GLOS? Gender, Lifestyle, Orientation, Sexuality. Preferably there would be another "S" to spell out "GLOSS," so it looks a bit more pleasing. If anybody has an idea about that, list it.

That one can include all aspects of gender, then acknowledges orientation as well as sexuality (along with the fact they're different), as well as alternative lifestyles (like some found in the BDSM community, or those with poly relationships). It doesn't leave anybody out from the usual categories, even the cis/straight folks who should be in there with us, not separate (that is, if we're encompassing unity - we should be working for acceptance of all these things, not separate ones to steadily increase the number of the boxes that fit what it's alright to be, because that's not true acceptance).

I'll stop here before rambling too much. Anybody think it could work?

What's the difference between orientation and sexuality? This is the first time I've ever seen anyone draw a distinction between the two.

Sexuality would fall within orientation, which also includes aspects such as romantic orientation, aesthetic attraction, etc. that aren't inherently sexual or in league with sexuality by itself. (At least how I've been defining it.)
They're just separate in this for the letters, and most people don't acknowledge that the two differ, so it's a bonus if they're explicitly listed as different things.

... Hm. I actually started a separation of different factors of orientation somewhere on the computer. Perhaps I'll place it here some time.