The Body Spectrum: Too Fat to Too Thin

The spectrum of weight... where do I want to be? Here's the scale from 10 to 0 in photo form:

10.
9.

8.

7.

6.

5.

4.

3.

2.

1.

0.

Right now I'm between 7 and 6... at least I am when you look at my tummy. I'm taller, but I gain in the middle, so if I have ANY fat, I have no curves... unlike girl 5 who despite being a bit heavy has a nice shape. I don't look like girl 5 until around 140 lbs. and I've never looked like girl 4. At 128, I was that skinny, but had no muscle and a bit of pudge in the tummy area.

I think I'd like to be anywhere from girl 5 to girl 3, but I'd NEVER want to be skinnier than girl 3. I think 4 would be ideal.