The creator and originator of the Philadelphia cheesesteak
Judging by the size of the line, everyone in Philadelphia, Delaware and South Jersey.
Rather than get annoyed by the tourists in front of you, laugh about it when they get humiliated by the bad-ass tattooed staff for ordering wrong. Don't bother with anything but a "steak" with/without onions and your choice of cheese. And by choice...get the Whiz and do it right.
The line for Geno's across the street is shorter for a reason.