Steak & Cheese In N. VA
It's a bit out of the way, but Dave and Buster's (believe it or not) in Rockville ships the bread, steak and cheese in from Philadelphia. It's the only place I've found in D.C. that does authentic Philly Cheesesteaks. I'll drive 45 minutes from my house at least once a month to get one.
Mario's on Wilson Blvd. & Monroe St. near Clarendon
has been there since 1957. The absolute best. Looks
rough, tastes great. Anthony's in Falls Church on Broad
St. next to the post office is a very close second.
I have lived in south Florida now for 23 years and
have yet to find anything remotely as good as these two
places. As soon as I hit town, I make a bee-line for a
Mario's steak and cheese. I realize it's a sickness,
but many people who grew up in Falls Church and Arlington are similarly afflicted.