Arguably, The Broiler has the best steak and cheese sub in the D. C. area. However, a place on Mt. Vernon Avenue in Alexandria, Al's Steak House http://www.alssteak.com/ (whose slogan is "Uncle Al's the nation's pal") has been in business longer. Fifty three years while The Broiler has "only" been open forty nine. The Broiler is, indeed, superb for a steak and cheese. But I have not been to Al's.
Has anyone had a steak and cheese there? The Broiler also?
And, please, don't call a steak and cheese a "cheesesteak" in this thread. Steak and cheese subs are a half century plus D. C. area tradition. When made correctly they'll hold their own compared to Tony Luke's, Jim's, Pat's and Geno's.
In '04 there was a thread on here that mentioned Al's and one of the two people who had actually been there noted that they cook the onions on the grill separate from the meat. That's actually how a steak and cheese is made. In Philly the onions are "chipped" in with the meat as it cooks. Curiously, The Broiler which has a huge sign in front of it announcing "Steak and Cheese" does this exactly as they do in Philly. And Al's, known now for their cheesesteaks," does not.
My guess is that someone changed the name at Al's to try and capitalize on the national fame of a "Philly cheesesteak."