Nothing personal but... Plat+ Global
Jinx, Ahri, Soraka, Nami, J4 are pretty honorable mentions too.
Why do we allow such high pickrate champions to also enjoy high winrate? Whatever happened to the balance team that we got on this whole winrate and pickrate mean nothing balance strategy.
Also thought I'd mention its also not because you can just learn how to play against them. If Morde was high winrate I might be like Learn to kite. Riven and zed just dash to you and kill you too quickly.
I'd complain more about vayne but I don't see her. Its hard to complain about something you can't see.
Edit: link to data