I think I'm at the point where I've now read more Stephen King than any other writer and I've still only read about half of his stuff. I have plenty of reservations which probably flow from his rich liberal politics. Working class characters are either dysfunctional trailer trash or family minded salt of the earth, ditto women. He also very much does a white writers take on black characters, who seem to come pre-packaged in terms of style, musical tastes, language etc. Having said all that I manage to remain a fan and have been 'rereading' a few of his novels on audiobooks recently. I previously read half of the Dark Tower series in the 90s and the rest in the last 5 years. They are a much better read if you do them one after the other and, give or take a few slow points and a not brilliant ending, it's great. I've also read a few dark tower related works:
Hearts in Atlantis (a bit too sentimental for my taste, ditto the film with Anthony Hopkins)
The Talisman + Black House, both jointly written with Peter Straub. There's a tendency towards dense prose, which must come from Straub, but enjoyed both of them.
Insomnia - great book. Enjoyed it even more as he chooses to have mainly elderly characters
Eyes of the Dragon - in the same universe as the dark tower, but done as a fairly story. Okay when you read it in those terms.
Little Sisters of Eluria - a short story that slots into the dark tower series. Readable. Just.