I enjoyed The Martian even more, but perhaps only because I wasn't prepared for how good it was. I was bored in Stockholm airport and thought "haven't I heard of this book oh HN?", flipped a few pages, and decided to buy it. It quickly became clear that I had a new favorite book (and it still is)

PHM, from the same author, I was very much expecting to be very good to amazing. It delivered, but it's a different feeling when you see it coming