I thought I was a rectangle due to not much differentiation between bust, waist, hips, however when I joined YLF, it was suggested that I was more hourglass (by virtue of a strong shoulder line) with rectangle tendencies, and possibly a little Apple for good measure!
Weight has stayed within 10lbs of my college weight (140lbs) and my shape the same. When I started posting on YLF 5 years ago I was 148-152 lbs. These days I am 136-140 lbs. Bust 36-37in and hips 38-39in. My waist has thickened permanently however, from 28 to 31 inches. When I switched from running to triathlon (swim, bike, run) in my 40's, and started strength training with weights my shoulder line became stronger (preserving the hourglass) and some added muscle made for curvier limbs and a more balanced physique.
I am currently at the lower end of my weight range, however still thick waisted. Weight gain goes to my low belly and mid back, which I think is Apple distribution.