I think a good widow just makes it a horrible experience, same for shimada siblings. Sombra and Kiriko can attack you, most likely kill you and have an amazing escape ability. The most annoying to deal with is a tie between Zarya and Doom. With Zarya, a least one person will have to get her charge 30+ and she just decimates your team and if you don’t you just stand there while she has her shield up. Not too hard to deal with, but annoying and boring. Good dooms like ZBRA and GetQuakedOn makes your life a stun-respawn simulator, whether you have D.va, Pharmercy or Orisa.