While I am not a big fan of all-season tires, there are places where they do make sense -- for example, you live in North Carolina or Dallas, Texas and you may get some ice and snow from time to time but you don't want to go with dedicated winter tires.
A tire like the Continental ExtremeContact DWS, Michelin Pilot Sport A/S Plus or the Bridgestone Potenza RE960AS Pole Position would all be good options. These tires offer very good handling, but will also work in light snow and colder weather. They are not going to give you the same ice and snow traction of a winter / snow tire but they will get you home.
These three tires are all rated very highly in surveys by customers driving on them. In testing them in the winter, they all proved that they could handle light snow.
So if you need a little snow grip, these All Season Tires should do the trick.