I have re-read The Way of Kings once, already, and I just made sure that I had read a few other books in between readings, so that I have a little more depth of knowledge of having read other authors/books so that when I go back to read it, it doesn't feel like I just read it. As well, when I go back to re-read it, I keep in mind certain things so that I know to look for certain connections that I may have missed or I may have learned about on these forums.
My favorite re-reads, thus far, are TWOK, the Thomas Covenant series by Stephen R. Donaldson. I have been slowly making my way through them as I haven't read them for quite a few years. I love his vision and simplicity. I don't think I have ever read a book more than twice that wasn't for an academic reason. TWOK will be the first time I have read a book a third time.