You guys don't have to qualify any WoT here based on perceived quality, because the question Mooky asked was about favorite book.

I once responded to a similar post in another nerdy corner of the net (question was 'favorite authors'. I came to the comment thread a little late and I had to complain that no one had yet said 'Tolkien'. The pushback I got was that he was not particularly good. Rather than dither over that, I just made the same comment I did above: he can be my favorite even if lots of authors are better writers. Because I'm grateful to him for completing the creation of the Genre of fiction that I love so much.