What didn't come across clearly in my post was that all seasons seemed a bit of a duff deal. IMO you'd go for Winter and Summer tyres. However given my budget restrictions the summer tyres cover my requirements more.
Aye, sorry pieface, I didn't meant to have a dig at you personally, just more of a gripe at reading the same old arguments against cold weather tyres.
You're completely right, if you can only have one set of tyres, it has to be the one which is the best compromise for you, and summers will definitely win for many people (particularly those who don't live in more rural areas).
One thing I will say about budget though is that although you have to fork out for another set of tyres, your summers will last twice as long, so the rubber costs (almost) equalise. That said, the cost of steels/changing is obviously additional to just running summers all year round.