Five Guys, really? That's an interesting choice. One of my local Five Guys consistently offers terrible service, so I wouldn't go there again. But, I do like that you can put as many toppings as you want. But, it's kinda pricey if you don't do it. The long wait times to get your order aren't really worth it either.
I said this the other day, In-N-Out burgers are pretty good. Fries are trash.
Personally, I like the smokiness of the beef patties and the use of a potato bun at Shake Shack. I love their crinkle fries too.