What a variety!
I just bought clothes and I found the perfect dress for me -- it's two pieces in the same fabric. So it's really a top and a skirt, but put together they look like a dress. The top is size 10 and the bottom is size 14. Best-fitting dress I ever had! LOL!
Even in high school, when I was 125-140, I never wore an 8. But that was eons ago, so if I got to that weight now, I would probably get to an 8 in modern sizing. But, I would lose all my curves (something that made my high school life miserable), so I have no desire to go there.