Anyone else have "that one champion"?

That you've always thought was a dumb champ, they had weird almost unfair mechanics, maybe ridiculous scalings, whenever you see them on the enemy team you go after them with extreme prejudice. Yet whenever you roll them in ARAM or something possesses you to try them out in a norms game or maybe even ranked you just go off and carry, highest damage in the game, S rating, can bring back a game from the brink of losing.

TL;DR: Anyone else have a champ they don't want to play even though they would get easy Elo from it?