Aw...I guess I understand why they did it, but I wish they hadn't. >_< Not all of us eat there every single day; a dozen servings of beef fat a year wouldn't kill me...
i can't remember the last time i had wendy's but i tend to find mickey d's fries more tolerable out of the other two and their both tied for burgers (i usually either go for a mcdouble at the golden arches or a bacon king from the other guys)
out of like all the burger joints i really like five guys but i can't really eat there save for like once in a blue moon and checkers (the one in my area anyways) just has way more seasoning than my taste palette can handle not that the fries arent good but it's a lot
I haven't been in a burger joint for ages.........
From KFC, McDonalds and Burger King I probably would go for McDonalds, but I don't like it XD
Hmm. Come to think of it, the only burgers in my whole life were the ones I've had were made at home or provided for us as one our school lunches. I had very few burgers outside from McDonald's or Burger King (I don't exactly remember where, might not even from those two) and um, they tasted sorta bland lol
Burger joint question uhhhhh gonna answer based off chicken combo meals instead?? Here's my top 3-
Popeyes (Yeah, I know but if we're going chicken.. I rarely go there on purpose, they got some flavor in everything. Strips and cajun fries with a biscuit babyyyyy)
Jack in the Box (My main go-to, the strips and those seasoned curly fries though sometimes I opt out for a breakfast sandwich and a hash brown)
Burger King (The chicken sandwich looks sad on arrival, but it's always good. The fries are super salty at times, and I'm a fan of that lol uhh chicken fries are also valid)
And a heated shoutout to McDonald's, y'all coulda been on the list, but you took your strips off the menu here and your current chicken sandwiches are sad imo
If you are talking about burgers...
Burger King
I never really cared for burgers back when I was still eating meat. I was the person who always chose hotdogs over burgers at a BBQ. I also hated the McD burgers. HOWEVER, Burger King Whopper Jr. was the one burger I did enjoy. They also now have Impossible Whoppers so I can still have them now that I can not eat red meat. There is also something deeply nostalgic about them, to bad there are not a lot of Burger Kings in my area.
When it comes to chicken sandwiches...
Wendys
Too bad I can't eat them anymore, they were really good. So much better than Chick-fil-A.
Everything else...
McDonalds
Even tho I hate their burgers and chicken, I think they have really good breakfast items (RIP all day breakfast). Their ice coffee is really good, I prefer it over Dunkin or Starbucks. Meat upsets my stomach so there isn't really a lot of sandwich items I can eat. However, the Filet-O-Fish tends to not make me ill. McD also has Grimace as well as other weird characters. And McD has that cartoon which is so amazingly weird.
I can attest to that! Five Guys fr has bomb ass burgers, even though I haven't eaten there as much. Idk how I didn't like them the first time I ate there
Wendy's out of the three but 5 Guys is by far my favorite. McDonald's gave me really bad food poisoning back in March so I'm never eating from there again 
I had to go to Urgent Care and get an IV it was so bad lol.
For chains, I gotta go with the (blessed) 5 Guys. But if I can get a great burger at a solid local eatery, I'm going to try that first (and lean on the other 3 like a crutch if I'm straight up hangry). The Farm House in Burlington Vermont really opened up my eyes in terms of what a burger could be (and they have the best beer list in town, so there's nothing but good stuff there). But a farm-to-table grass-fed beef burger is tops.
Shoot! and now it's lunchtime and I have nothing good in the 'fridge. Welp, let's make something happen (and wish me luck).
Burger King carrying Impossible burgers has made it our go-to fast food on road trips :). It's really good if you factor in the price/speed!
Of BK, McD and Wendy's? McDonalds has the best fries. It's on my stretch bucket list to try the shake shake fries in India.
I never ate nuggets so can't opine there.
Oh and just saw we could bring up another one! We in Pittsburgh are lucky to have Burgatory 
. They make amazing burgers of all sort and the most delicious shakes (with or without alcohol). If you ever make it to Pittsburgh, give it a go.
I haven't willingly eaten at one of the big three (McDonalds, BK, Wendy's) in years-- they tend to be our "We've been driving for six hours and I will eat my copilot if we don't find food soon" restaurants of last resort. If I'm getting fast food locally, I'm usually getting Jack in the Box or Popeye's. Five Guys is good too.
If I can swing it, though, I prefer our local/regional burger chain, Burgerville. 
Out of the 3 listed I find myself leaning Wendy's these days. Never been a fan of McDonalds and don't mind Burger King, but I find myself always being satisfied when going to Wendy's 
That said, I'm also partial to Seattle's local burger chain, Dick's! Nothing beats a bag of Dick's, especially late night after a concert 
Or if I want an actual good cheese burger, then I prefer to just go to a proper restaurant.
Honestly, there was a time for years in which I really did not like five guys. It took being stuck with my Five Guys loving uncle, brother, and cousin at the mall to get me to try a burger and fries again, and I grew to like it even more over time.
I dunno, I don't usually eat at fast food restaurant, but from time to time I like myself some good Old Wild West burgers (I know it's a steak house and not a fast food chain, but still)
Edit: Also, just found out it's just here in Italy and a few other places in Europe lol
Five guys is awesome, but I also like Wimpy
(If you don't know, Wimpy is an incredibly obscure British burger chain)
I haven't been to McDs in ages, but would like to add further evidence that their fries are better than their burgers. When my old corgi was in his final weeks, my brother bought him a cheeseburger Happy Meal. With the entire meal presented to him, he immediately went to the fries and devoured them all before even looking at the burger.
...and because he was a corgi, you know that he knew food. X-D