I just got to master playing nothing but Hog/Zarya (mostly Hog), and I think he’s a great hero, but he’s massively being held back by how much he feeds enemy ult charge. His winrate has been one of the lowest for a long time, and I honestly think this is one of the main reasons.
Passive ability suggestion:
Thick Skin - Roadhog provides 25% less ult charge to the enemy when taking damage.
This change would not make Hog more powerful, but would just help his team to not be punished so much for having a bullet sponge on their team.