judge (mostly) based on taste.

In that case here are the rankings (of the restaurants listed):

1) Chick-fil-a. Their chicken sandwiches are obviously much tastier than the competitors, but are also actually cheaper.

2)Wendy's/Taco Bell. This depends on what you are actually comparing. Taco bell still has an actual $1 menu (at least where I live). However, If I have $7 that I have to spend at one or the other, I am going to Wendy's.

Last place: McDonalds) Their drinks are cheaper. That about it. They do not have a dollar menu and most of their food is...meh. I have never been excited to eat anything from McDonalds (with a possible exception of some of their breakfast sandwiches). I have had items from the other restaurants that I definitely thoroughly enjoyed. Not so at McDonalds.

NA: Del Taco. There are no Del Taco's near me. I grew up in an area with Del Tacos, but we rarely had the money to eat out, so I can't accurately rate them.