If I could remove one hero, it would be Bastion.

He's easy to play around, but MAN is he annoying. You slip up once and he goes "BZZT" and you're dead. Easy to quick peek and whatnot, but these cocky Bastion mains that sit in corners and LMB are making me quite the salty sailor.

Edit: To reiterate, I am NOT saying Bastion needs a nerf. I am NOT saying he is an unbalanced hero. I am NOT saying if you play him, you're the worst (although..). I just hate him.