Feedback Wanted: Most Disliked Characters

So on the other end of the spectrum, which characters of mine do you find to be the most unlikable? It can be unlikable in a sense where you think they're poorly made, or unlikable in the sense where they're good characters, but you dislike them as a character.

And of course feel free to make your own questions about these. I hope to start this as a trend to get people more familiar and open about characters within our community.