  Craig Seligman has written a book on urlLink Susan Sontag and Pauline Kael , cleverly entitled Sontag and Kael: Opposites Attract Me . I will admit I've never imagined such a side-by-side, but it does make sense. I am afraid that Mr. Seligman's self-avowed personal relationship and "love" of Kael, and his far less personal relationship with the far more detached Sontag, will color his views against Sontag, whose achievements in cultural criticism in the 60s and 70s stand among the very greatest achievements in the history of art.
Still, should be interesting. NYT has an urlLink excerpt. Seligman does offer this treat for those who doubt his reverence for Sontag: When I complain about her, you should keep in mind the caveat Nietzsche proffered once at the end of a (much more bitter) attack on Wagner: "When I use harsh words against the cretinism of Bayreuth, the last thing I want to do is start a celebration for any other musicians. Other musicians don't count compared to Wagner. " The Nietzsche quote comes from his infamous and vicious The Case of Wagner . 
