Emet is a bad healer? what?
My experience with Emet has been nothing but good, once you understand how you’re supposed to go about playing him, you will find that you don’t even need a defensive support character to stop you from getting mauled by the monster due to the fact that Emet I think is the most strongest self-sustain medic here, you can have your team hammering on the monster while it’s trying to kill you, you just need to play as smart as possible by spreading out your healing buoys and hammering your class heal off cooldown.
His respawn beacon is a god send when used right as well, I had a match where 1 person got downed and I could see it getting bad quite quick with another guy on really low health, so I went and placed my respawn beacon behind a wall in prep for their inevitable deaths, as soon as they died they were back in it and the pressure was back on the monster.
Val I think is a great healer still, I’ve always enjoyed using her, the range on her heal is still insane so getting some good distance between you and the monster is always recommended, Rouge Val has insane AoE heal with some good potential for damage, I think you should just perhaps consider not playing medics seeming as you have a dislike for most the characters.