These are those that I'm familiar with that I'm sure you guys know as well. If it is not listed than please specify. Also post why (best burger, chicken sandwich, quality food, family tradition, etc.)
Chickfila..love pretty much everything on there menu and the quality is far superior than mcdonalds. Much healthier than mcdonalds as well. Love the chicken salad sandwich and wraps. Also was my first job.
Whataburger, followed by Taco Bell. Although Five Guys is almost a "fast food" restaurant so that would get my vote.
in n out easily, the only fast food place where you can take your girl and still get some that night five guys is not really fast food since i see them more as a fast food/casual dining hybrid or whatever due to not having a drive-thru(a must for fast food) and having higher prices.