I wouldn't say that I loathe any manufacturers. The one brand that I really was into, but really soured on, was Chrysler, and it was mostly their customer service, not the vehicle itself. The vehicle (a 2007 T&C) did present numerous problems, but the way they were handled was just extremely poor. The dealers in our town turned out to be lousy, and Chrysler corporate was even worse. At the time, I thought, "geez, no wonder you're going bankrupt". This was soon after my folks had to Lemon Law a 2005 Jeep Grand Cherokee, with Chrysler fighting them the entire way. My family's experience with Chrysler was consistent there towards the end of our ownership experience with them. My folks did go on to own a '06 TJ and a '12 JK, which were great vehicles. And, again, their '05 Grand and our '07 T&C weren't as bad as Chrysler's treatment of us as valued customers. I'm sure they've changed...I hope they've changed. It was sad, though -- our family had many Jeeps, and I had always admired Chrysler's vehicle line up. Especially in the late '90s -- it seemed they had a real brand cohesiveness going. Daimler messed a lot of that up for sure...
I'd probably own another one. It'd take some pretty significant convincing for my wife to step into that pool again...
On the other side of the coin, I used to really dislike Honda. Mostly for the same reasons 440 dislikes Toyota -- because of the owners. This was the early and mid 1990s, EVERYBODY had a Honda, you were told that you should buy a Honda, and I was really into Mustangs (and Fords in general; my dad had a '92 5.0 LX and my mom had a '92 Crown Vic). I got SO TIRED of the "you need to buy a Honda" thing all the magazines were spewing. It wasn't until MANY years later that I actually drove one, and my opinion completely changed. And now we own two of them, and I'd buy another. We might get a real lemon of a Honda one day, and the company might treat us like Chrysler did, and I'll sour on them, I don't know. I guess we play our cards as we're dealt them, right?
But, this is really why I don't hate any manufacturer, and never give anyone a hard time about what they choose to drive, even if it's not my choice. All of our experiences our different, and our experience is the engine behind the choices we make.