I'm a west coast kid, born and raised, I've never had a "real" philly cheesesteak but I can't see it getting much better than Corleone's. I've been a frequent customer for the last 3 years and loved it every time, weather its 2 am after a big night on mill or middle of the afternoon, they fire out great sandwiches. The down side, as with most things in life, its expensive and not getting cheaper. When I first went to Corleone's, a #1 combo(philly steak with whiz and onions plus fries and a drink) was about $9 and they had "2 for Tuesday" buy any sub get an equal sub for free. Now a combo is almost $13 and Tuesday's are buy a large get a half free. The guy thats usually working is hilarious if you get him on a tangent, just be ready for profanity and a few inappropriate jokes.
Delivery is usually an option although if the store is too busy or you live to far away they may not deliver.