Garth Ennis might be the best known writer of Hellblazer (unfortunately) and when he worked on the title, he made damn sure you got to know what he thought of Christianity, in a dreary edgelord sort of way. look, it's St. Michael—and he's a hopeless dweeb! zomg!!
it's too bad that Garth Ennis happened to Hellblazer (I never bothered with Preacher, because of his "Hellblazer") because then I got disillusioned with the title for a long long time, and so I think I've missed out on a lot of good stories. I've heard the writing picked up again after Ennis's run, but that's about the time I stopped reading comics completely for a long time.
Delano doesn't much like Christianity either but he's more precise in his attacks. for some early drama he gives us an American fundamentalist "Resurrection Crusade" that's terrifyingly plausible: they promise literal miracles and scheme to bring about the birth of a new Christ child on a magically significant day. it seems probable to me that there's numerous real-life analogues to the "Resurrection Crusade", in spirit at least, i.e. murky fascıstic cult groups whose aims are practically magical in plain terms—people who hate the world and wish, by whatever manipulations and coercions they deem necessary, to force the world's transformation, because they think it will unleash powers beyond imagining.
to reread these comics is to be reminded that a significant and powerful fraction of Christianity simply gave up on the world a long time ago. it's like a sort of carefully disguised and ritualized despair: they've already decided that Earth and most human beings are trash that God's about to sweep away, and therefore it's actually evil to care about people or the Earth generally because we should be focusing all our energies on the Second Coming and the small handful of human beings whom God actually likes. that "nucleus of human specimens" must be protected at all costs and everyone else gets to gnash their teeth. and they believe (and perceive) that they have powerful spiritual backup. it's not fashionable to think of religious visions and spiritual experiences as meaningful, I know—but if nothing else, I urge folks to remember that such experiences feel good to the people having them, and that must surely feel like something worth doing crimes for, and dying for.
~Chara