These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Preacher
Acceptable Religious Targets: One of the main reasons this series exists is to make fun of and/or piss off Christians.
Complete Monster: Marie L'Angelle is utterly terrifying, and in Preacher that is quite an accomplishment.
Allfather D'Aronique: At the end of every day, every leader of every nation makes a telephone call. They dial a number I have given them. And when I answer, they simply say— "Thank you".
Herr Starr: among others, forces one of his childhood bullies to drink weedkiller, has an angel tortured for information, sacrifices an entire army division just to get rid of the Saint, kills the only descendant of Jesus (though that might be more of a Mercy Kill...).
God Mode Sue / Villain Sue (Until his quasi Heel Face Turn): The Saint. Nothing can kill him and he can kill everything. At least Jessie getting him once with the Word of God showed he wasn't completely invincible.
Possibly justified, given that, well, he's Death. Being unkillable and able to kill anything sort of comes with the job decription.
HSQ: Just keeps going up and up in the War of the Sun arc. The Saint goes from kicking a tank to being hit with a nuke!
Magnificent Bastard: Herr Starr. Even after being nigh-completely mentally and physically destroyed, he's still just about the baddest motherfucker in the valley. (Okay. Second baddest.)
And after Jesse's supposed death, Cassidy gets a broken Tulip hooked on pills and booze so that she'll be totally dependent on him, and has sex with her multiple times whilst she's pretty much completely out of it. And that's before we discover his past. He does feel ashamed about it after, but still...
In all fairness, it's possible he didn't intentionally keep Tulip drugged up for that reason. From what we learn of Cassidy from Sally, it's clear that he has some serious problems with substance abuse and tends to drag his lovers down with him sooner or later. Plus, since they were both under the impression that Jesse was dead and Tulip was completely crushed, he might have though he was helping her deal with the pain in the only way he knows how.
He commits a murder that the victim did not deserve (Sheriff who shot at him for sleeping with his wife). Honestly, what did Cass expect the guy to do? And Cass survived the shot, being a vampire and all. This is the first solid hint that ol' Cass may be more on the side of darkness than light.
Values Dissonance: In the Arseface origin story. Both kids suffer pretty much ever textbook case of bullying, at home and at school, without even a hint of help of escape coming from anyone or anywhere. After they try to kill themselves, resulting in one death and one horrible disfigurement, the survivor gets yelled at: He should just have been tougher!
The Woobie: Arseface - his father is an abusive Jerkass and most of his peers aren't much better. Then he is horribly disfigured by a botched suicide attempt and it goes downhill from there...