Hmm...I liked 6 of the books on your list! ^^ Didn't absolutely LOVE any of them except for Fahrenheit 451. How can you hate a book like that? It was so cool to watch someone discover literature for the first time, and Bradbury did an amazing job with it.
But anyway, I thought these were terribly overrated:
The Oddyssey by Homer
Pride and Prejudice by Jane Austen
A Farewell to Arms by Ernest Hemingway
The Hobbit and The Lord of the Rings by J.R.R. Tolkien
Great Expectations by Charles Dickens
Ah, but by the same token, how can you say that 'Pride & Prejudice' is overrated? You may not like it, but by any reasonable standard it is a timeless classic, both as social satire and as a study of human nature (which really doesn't change much!)
I'd include in my argument 1984 from the original poster's list too - not everyone's 'cup of tea', but surely not overrated?