Alexia, I think you are putting too much thought into the acronym set up.
When people changed it to LGBT from GLBT, no one was hogging no spotlight.
With that said, I've seen a lot more LGBT than GLBT. It's easier to say and it's not as male dominated. I don't say TLGB because it's harder to say. Plus, there's a lot more lesbians and gay people than trans..i usually agree in the order in which how many there are....which probably would be BGLT, but that's a headache to say lol