I'm going to Philly in a few weeks for a conference and am trying to figure out where the best place to get an authentic philly cheesesteak is. My conference is at Villanova and I don't have much time to get away during the conference...but I'll have more than a few hours to kill at the airport between checking in and actually having to board. I thought about taking the SEPTA into the city around Market East or 30th St from the Airport. Does anyone have any suggestions?