I hatewatched Eraserhead and im still very angry about it. I don't think it would qualify as "worst" in the sense that you asked but i almost always hate lynch because his movies are designed to make the audience uncomfortable and he's a master.
To destroy my argument i present mulholland drive, one of my favorite movies.
K fuck eraserhead though, forever! I watched you once to say that i had and i hate youuuuuuu
Shit yes just the dinner scene alone was such an overwhelming combination of 'wrong' for all the senses that remembering it gives me the willies. Lynch man...
I should like Lynch, but I don't. Lynch-style movies not involving Lynch are things I enjoy. There's something about his movies that's off-putting (and not in the way they're intended). I think it's the campiness of his films just take me out of them. He goes for dark but it feels too kitsch. They're also slow. A lot of time spent lingering a few too many seconds on one shot. Those seconds add up and make them longer films than they should be.
He's not the worst and I wouldn't even use the term "overrated." I think I just don't like him.
You said it better than me. Im not making a claim against the man's skill, certainly not. In fact i wanted to answer ops question in a different way, a movie i think was successful in its intent but was still the worst experience.
He's challenging and an aquired taste for sure. The first time I saw Lost Highway I thought it was shit. It was almost the same feeling I have the first listen through an Autechre album. Then I ended up watching it again and again. On the 2nd viewing I got it but it wasn't till the 3rd that I liked it. By the time I watched it a 4th time I loved it. Inland Empire and Eraserhead are the only two movies he did that I just didn't like. The disney movie was mid.
I saw Eraserhead on recommendation from a colleague, however I had just had my first child. It was an experience that hit home pretty hard. I like Lynch, and I think Eraserhead really hit a certain aspect of parenthood on the nose with a shockingly loud concrete newspaper.