Nationwide? In n Out. Regional? P. Terry's in and around Austin Texas.

Taco bells bean burrito put inside a soft potato taco

The one I make that burger king

Hungry Jacks

Burgermeister, DE.

Max, Swedens best Hamburgers

well mcdonalds has sold the most, so corporately they are the best. for me tho, in-n-out

It's subjective, so this is just a gross explosion of branding. Cheapest astroturfing ever.

I don't really have fast food money but there is this burger place in town that stays open til 2 am and has a mean veggie burger within biking distance. It's a nice treat, I'd reveal the name of the place but the details I have given already are identifying enough for my taste

Outback Steakhouse has awesome burgers. A close second IMO, is Smokey Bones burgers. They are mostly on East coast US.

I don't eat fast food.