I had a couple of barbies when I was little. I always really wanted Peaches and Cream barbie that a neighbourhood girl had, because it came with that big boofy dress.
I also wanted a Ken doll but made do by cutting the hair off my least favourite barbie so I couldn't have been paying that much attention to the body shape of the dolls.
In terms of what women were supposed to look like it was my Mum who set the ideal in my mind. She had a mum body and mum boobs that I assumed I'd get one day (and I did).
My various stints with eating disorders came instead from my Dad criticising what I ate, and kids at my school bullying me. Not from the barbie. I do think those teen girls magazines are bad juju though, Dolly, Girlfriend etc as they normalise weight obsession.