Maybe an unpopular opinion but...
I REALLY hate Tristana's ability placement. Why the hell is her rocket jump on her W? It makes me constantly rocket jump randomly every time I use her because I think I'm using her Q. Her ability placement feels completely different from any other champion in League and the way they normally handle ability placement. It's completely infuriating whenever I play her.

(didn't name them all as I suddenly got in a hurry)