Bans and Counters

Who do you find are our hardest counters and who do you ban? I realize I can see the "bad matchup" section on OPGG but was still curious what others think.

I currently ban Yorick because I hate that fucker. Getting trapped in his stupid ring, him throwing his dumb ass ghouls at you and chunking all your hp, and then just splitting the whole game.

Of our bad matchups, which ones have you had the most success with "learning their weaknesses and how to play vs them".