Pat's Steaks, Philadelphia
The age old battle for Philly cheesesteak supremacy. Pat's vs. Geno's. I've had both and I choose Pat's. Supposedly there are other places that do an even better sub, but I don't live there so I'm not really down to go venture around Philly looking some fairy that may or may not exist.
Pat's. King of Steaks. (or at least King of Steaks that I know about...in Philly).