To answer my own poll, hip length is too long in my opinion. I see a lot of girls around here with really long, uncared for hair (or cruddy cheap extensions that haven't been blended in well) and it looks awful. It seems they want length over health.
I'm aiming for bra strap at the moment, though I'm wanting a bit of shaping around my face so it doesn't loo to overwhelming. I can always cut it shorter if it looks bad.
Fat does not make you fat. It's actually pretty important.