Just curious! If you could snap your fingers and choose your ideal body FOR YOU at your stage of life, what would you choose? You can hypothetically eat whatever you want and remain your chosen shape.
I would choose size 10 (so fitting current clothes size 8), gentle hourglass, smallish breasts.
I have been that (and bigger and smaller) and this was the easiest for being able to wear almost anything, and feeling light on my feet without being too gaunt. I felt really healthy.