Yes, I’m calling it.

I can almost hear you now: “Sure, Mark, you’ve wasted half your life and most of your money on those four-color funnies, but how can you really single out one – one – comic book and claim it is the worst ever published?”
True, I haven’t read every single comic book ever published, and there is a lot of dreck out there (DC’s “Convergence,” the stink is mighty from your direction), but I’m confident in my pick.
“The Avengers” No. 200, issue date October 1980.