If I’m out for lunch and a Reuben is on the menu that’s my choice. At home, swiss cheese and hard thin sliced salami (or turkey breast) on sourdough bread. Plus lettuce, mustard (dijon preferrably) and Duke’s mayo.
Depends on where I am visiting. In New Orleans it would be a shrimp or oyster po'boy. In Maine definitely a lobster roll. In Philly I crave a philly cheesesteak. So many places and so many choices and all are fantastic.