Well, my favorite topping depends on what I am eating.
Hot roast beef sandwich (covered in gravy) then the fries of choice are GRAVY FRIES.
Texas Style Hot Dogs (see the thread in hot dogs forum) then it’s got to be TEXAS FRIES. Hot fries with a couple slices of cheese and covered with Texas Hot Dog Sauce.
Fast Food burger, then the fries get salt and ketchup.
One that I don’t get often enough is….For lack of a better term….Carnival Fries. We still have local Firemans Carnivals around here for fundraisers and nothing beats fresh cut (or even frozen crinckle cut) fries fresh out of the oil in a cardboard ‘cone’ with vinegar and salt (maybe some ketchup on the side). Brings back lots of memories.