Whom to Buff, whom to Nerf?

Who do you buff?
Who do you nerf?

Torb and bastion seem like they’re underperforming pretty hard, especially Torb. Mei has also been kind of meh, the HP buff made surviving a wall trap easier.
Cassidy feels pretty strong. Genji’s blade is ridiculously fast. New Pharah still does not feel good to me, and I’m not sure why it was necessary with the new hit box changes.

I can’t speak too much to tanks and supports since I don’t play them often, but Doom and Ball are incredibly popular right now, as is Moira. Don’t see too many Dvas or Lucios.

Symmetra needs massive nerfs after this patch. LW needs something too.

Soldier still needs nerfs, as does Sojourn.