Compare and contrast Stephen King's lessons with Elmore Leonard's "10 (really 11) Rules of Writing", and the difference is as stark as the author's respective works.
The other, real point there is that there's more than one way to do something well. Hemingway and Mark Twain don't write very much like each other, but both are worth reading.
3. and 4. are identical to King's recommendations in "On Writing". King is pretty passionate about that.
5. is the same, I think.
7. is kind of a difference, although King laments that few writers can actually handle it.
8. and 9. are real differences.
King is against detailed description of characters -- (paraphrased) "If I describe character too much, it conflicts with your view of them."
He's also against overly detailed description of places -- (paraphrased) "Keep it brief. You want to give a description of the room, it's not a travelogue."