Worse*

Definitey Opie, I don't think Fez is that disliked at all. Ron is actually a great puppet master, fez being 'hated' is a bit and ron is making it happen like a professional.

Kind of like with wrestling, he turns fez around, from a hero to a villiain, and the listeners are addicted to find out the next turn of events. I'm pissed off how much more popular the o&a subreddit is over Ron and Fez.

Opie by far, because he's actually unlike-able.

Fez has mental issues, which they've talked about on air a lot, and everyone is aware that Fez is practically crazy (his least favourite word).

We all know what Opie is.

Fez is actually entertaining. Even when he's not talking.

Opie should be more like Fez, really.

Fez. Because he / his character doesn't bother trying. Opie tries but is annoying/not adding value nowadays but at least he's trying hard

Having typed that I want to change my vote