I wonder why you would even bother with Summer tires when there are some excellent all-season tires out there that will give you many more miles of tread wear. Currently, the best bang for the buck is the General Altimax RT43 (75,000 miles wear prediction). Next up is the Continental PureContact LS (90,000 miles wear prediction).
The most expensive, but frequently rated highest in its class is the Michelin CrossClimate with a 75,000 mile wear prediction.