When my tyres wore out I fitted Michelin Cross climate all round. I use my car for work and had some journeys planned up to the Scottish Highlands in January, so I thought something that will give more traction on slippery roads would be better. They also give a quieter ride. They've been on for 29,000 miles and I reckon they're good for at least another 10,000 miles. Apart from one frosty morning, I've not had the opportunity to try them out on snow or ice.
What swung it for me was a youtube video where they tried driving cars up the slope at Tamworth snowdome, comparing summer, all-season, and winter tyres.
For summer tyres, I would recommend the Goodyear EfficientGrip performance 2. Shop around on the web to find the best deals once you've picked a tyre. After the tyres are fitted you will have to drive around on them for a bit before the tyre pressure monitors reset. If a tyre pressure monitor doesn't reset, and the tyre pressure is right, the fitter may have damaged the valve sensor.