To me, there are two Stephen Kings.
There's the excellent writer who's brought us classics like "Misery", "Dolores Claiborne", "Apt Pupil", "Rita Hayworth and the Shawshank Redemption", "The Green Mile", "Needful Things" and a respectable few others.
Then there's the pulp author who's thrown up such dross as "Insomnia", "Gerald's Game", "Desperation", "Dreamcatcher", "The Girl Who Loved Tom Gordon" and enough others to make me very wary of picking up a novel with his name above the title.
I guess I'm mroe into his thrillers, than his more out and out fantastical horror, and I've never read any of "The Dark Tower".