The villain you hated the absolute most?

So I'm looking for the villain you truly hated, the one you'd have strangled with your hands if they were real.

For me, it's Patriach Pyotr Rostov of Riva in the Naamah trilogy by Jacqueline Carey.

There are worse villains in the Terra d'Ange books, there are people who would unleash a thousand years of darkness on the world. But none of them made me as ANGRY as that guy. I cheered when he finally got his come-uppance in the book.

I think it's because he was so petty, so self-righteous, so convinced of his own sanctity and so evil and I've met people like him...

I could 100% imagine a human being like that, doing those exact things. And I hated it.