Champ hate

So guys I want to know. Which champs really grind your gears and why? Do you feel they're to OP, are they just annoying to fight, or the people who play said champ just toxic and spam dance in lane. For me it's because as an adc main he's all 3 of these things. With changes to qss I feel like there's no counter play to him anymore. He's really annoying to fight because unless you're rammus you're never going to catch him with his shadow and youmuus. And the last reason is I have never ever been in a single game where Zed didn't spam dance. Also please feel free to post champ counter tips.