It’s a shame that Tolkien’s The Lord of the Rings is not even given a mention in the critic’s top 100. In my opinion, it’s a far greater novel than the vast majority of those listed.
Unfortunately, outdated modes of academic snobbery tend to exclude The Lord of the Rings from the realm of contemporary literary criticism. There’s a very interesting essay here http://www.findarticles.com/p/articles/mi_m0OON/is_4_23/ai_99848429 that explains why The Lord of the Rings is indeed very worthy of literary merit.
Just my two cents.
It is pretty weird that all those L. Ron Hubbard books are up at the top of the readers list though…