Comparing Pride and Prejudice to Twilight is like comparing nectar and ambrosia to vomit. And I love it when people summarise a book in a sentence as if to mock it, as if this can't be done with pretty much any book ever.
Pride and Prejudice sucked. The only reason it is popular is because it appeals to the exact same crowd that gobbles up the horse that Twilight is. If you're going to defend a "classic" then defend it, don't attempt to refute personal opinions with blanket statements.
Since the original poster simply said it was crap and then made some lame 'I'll summarise the book in a few words ho ho' comment why should I make the effort to go into a detailed defence?