Who's your least favorite character of Stranger Things?

I see a lot of people naming their favorite characters on ST. But, it's time to say who do you like the least or even the character you hate the most. For me, it's Max/Sadie. Before you fans of Max come up with pitchforks, I'd like to say it's nothing personal. It's just my opinion.

I feel like she was shoehorned into a group of already well established and just the right amount of friends. She feels like one of those one too many extra characters. Eddie Munson was atleast cool and noble in an organic way. Max is kind of whiny, no offense. Who's your least fav and why?