If he wasn't as well written I could see someone else taking the throne, but yes, he's definitely my #1 most hated antagonist.
Who knows, though. He could end up being an antihero (or something similar) by the time the series ends.
That's why I have to stop reading these things until they're finished. Too much anxiety.
I feel you. And the author seems to enjoy making us wait for new chapters :( !