Anything related to the fantasy genre
Pet peeve of mine but grouping an entire series together as an entry in a list of individual books is so stupid. So many lists do this all over the net.
At least pick a stand out book from the series or something. Sorry but don't promise me a list of 21 books then give me trilogies and series all getting their own single entry.
Lists of book series are way more useful. Book 14 of Wheel of Time is one of the greatest fantasy books of all time. Would I recommend anybody goes off and reads it, hell no.
But that's pretty much what the OP list is doing by having the whole Wheel of Time series on there. To me it's more useful and interesting to see your opinion of that one book than yet another generic list of popular series masquerading as a list of specific books.