There's no need to make unwarranted accusations of threadcrapping. Given the reputation of Quag Keep, that accusation could just as easily have been levelled at you.
The fact of the matter is that "common knowledge" is that no D&D novel (or any other licensed fiction, for that matter) have a tendency to be very good, even compared to other mass market paperback genre fiction. Which doesn't have a good reputation for quality either, but which at least has a much better reputation than gamer fiction.
The Rose Estes novels have a certain charm. Granted, it's a bit like watching really crappy B-movies. Some people hate them because they're so terrible. Other people, myself included, are kind fond of them precisely because they're so crappy.
I recommended Rose Estes, and I included a link which serves as a nice caveat on my recommendation. But frankly, if you're going to be reading D&D fiction at all, then you're hardly in a position to throw stones about the quality of Rose Estes, or anyone else's writing who's dipped into this type of licensed fiction.
It's exactly like asking, "what are some fun black and white b-movie science fiction movies from the 50s and 60s that I could watch?" and my recommendation is jumping straight to Plan 9 From Outer Space. If you're going to indulge in terrible books, you might as well indulge in the worst of them. In fact, that's kinda the point.