There isn't a single one for me.

However, I gotta put a lot of weight to the "all the way" that's pretty much the default in my area. Mustard, onions, slaw, and what's called either hot dog sauce, or chili sauce. Which, the sauce is similar to "hot dog chili", but not the same; it's a little different spices and in cooking methods. Secret family recipes abound.

It's an amazing combination when paired with any of the standard store brands, or the "red" hot dogs the are popular here in the south.

I'm also a big fan of mustard and kraut. I tend to prefer it on fancier frankfurters and other kinds of sausage, brats and kielbasa in particular.

There's the "pizza dog", aka an "italian" dog. Has zero to do with Italy anything that I've ever seen, but that's what it gets called sometimes. This is a double preparation dog. You cook the franks however you prefer (I recommend either "dirty water" or a mid tier beer boil). You then place them in buns, top them with your choice of tomato sauces like marinara, then with the usual "italian" melty cheeses; mozzarella, provolone, maybe some parmesan. Do this in a baking pan or whatever, then put it in at 350F until the cheese melts and slightly browns.

You can get fancier with that, but it's absurdly satisfying just like that.

I don't mind what I call a basic dog. Bun, frank, mustard and ketchup. That's for when you've got a really solid flavored dog that you want to savor. The acid from the mustard and ketchup cut through the fats as you chew, bringing the meat flavors back across your palate in waves. But a lot of the time, I'd rather do kraut and mustard if the dog is really rich on its own.

I fucking love hotdogs tbh.