Is it sexier for a woman to have the perfect body, or for her to be comfortable in her natural one?

This is a debate I have on occasion with friends. I am very interested in everyone’s opinion. This relates to everything from plastic surgery to extreme dieting to differences between individuals in general.

Is it more attractive for a girl to be paranoid about eating, or for her to be comfortable doing whatever she feels like?

Does it make a girl sexy for her to feel sexy and confident and playful?