Best fries in Calgary. Period.
In my childhood, we used to go to Kenora, ON, where there are multiple "Chip Trucks" that serve only fries topped with tons of salt and vinegar. They are thick cut, crispy but soft fries, and they needed no ketchup (says the girl who puts ketchup on everything).
Family Fry Guy's fries are JUST like the fries of my childhood! I love 'em!
P.S - they also have poutine, which looks amazing, but I'm a purist so I'll have to let others rate them :)