Multiple locations
Some people say it's the ranch, some go with the "pizza"-style (add marinara sauce), while others just enjoy a bit of ketchup on the side. Regardless of how you eat them, the Eegee's French fry is more a culinary rite of passage in Tucson than a side order. Many learn the habit while enjoying their high school lunch break, though the addiction to Eegee's fries is long lasting. You have been warned.
Runners up:
2. Diablo Burger
3. Graze Premium Burgers