I'm not crazy about comparisons, but if comparisons need be made, why make the most obvious one? The one that tells absolutely nothing about the book? "Robinson Crusoe on Mars, 21st century style." Please! 
 I think The Martian is more like Moby Dick - the Red Planet plays Captain Ahab, while our hero Mark Watney is the white whale. 
 In Moby Dick, Melville's insistence on every aspect of whaling (and more) makes the book feel eerily surreal, almost somnambulistic and a bit, well, crazy - reflecting the state of mind of our obsessed Captain. In The Martian, Andy Weir uses science to make Mark's story feel realistic and plausible. 
 But even this disparate treatment of detail brings two books closer together, in a way that science serves to shake the foundation of the story - Moby Dick doesn't feel like a book about whale hunting, and The Martian feels nothing like science fiction. 
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