Jodi Picoult has fallen into that same category for me. After reading three of her books now, I've decided that she is the female equivalent of Nicky baby. The only differences I've decided are that her books are a lot longer. She also does so much heavy foreshadowing in her books that to not figure out the ending by Page 12 means you aren't really paying attention to what she's written. Which you don't need to, because you can figure out the entire book by Page 12. It's like she's smacking you in the face with her "surprise" ending.
Of course, having not become a national bestselling author myself, I have little room to talk. This tangent would be a lot longer, but I still haven't fixed my keyboard's space bar, and it's rather like playing Whac-A-Mole. If you like Jodi and Nicky, well, um, that's great. Let's just not talk about them again.