Steve's in the Northeast serves a great sandwich, however, I shall respectfully disagree with you surasnji
Best cheese steaks here in Philly are as follows:
Jim's Steaks- I used to go the one off of 62nd St. in West Philly. Not a safe area now. They do have the one on South ST. in Center City.
D'Allessandro's on Henry Ave (Roxborough)
Chubby's " " (ironically across the street from the above, but hey they served beer way before their neighbor

) This place also has the best selection of hot peppers!
Tony Luke's on Oregon (South Philly)
I can't stand Pat's nor Gino's! Commercial appeal and mediocre at best!