Looks wise I prefer the astra, but it is a bit of a boy racer car and you may find that this can increase your insurance (not kidding)
From a driving point of view, I would have thought the Audi is nicer, as it is an Audi, but I have never driven any of them, so could be totally wrong.
I would likely go for the Ford. looks good, nice size (bigger than a KA) and having learnt to drive a focus, which is essentially a 4 door fiesta, I can say that they are very nice cars!
But specs plox!
EDIT: Fuck that, you need to get one of these!