Can you make it until next Spring / Summer? If so, it looks like the Pilot Sport AS3's will be a great setup for you in Philly, where it does get cold and wet.
Otherwise recommend the current Pilot Sport All Season Plus (I have had two sets) if you cannot wait.
As was said, if you are not going to switch tires, even if you will avoid snow, the high performance all seasons make more sense where you are.
Sophisto Grau / Oyster - Black Nappa, Anthracite Wood Gone but not forgotten.
Heaven is where the police are British, the cooks are French, the cars are German, the lovers are Italian and it is all organised by the Swiss.
Hell is where the police are German, the cooks are English, the cars are French, the lovers are Swiss, and it is all organised by the Italians