Reading Rainbow

I decided that I don't read enough and that's not a good thing. So, in efforts to break one of my many bad habits, I'm making a vow to do some summer reading. I've created a reading list (a work in progress) and have already (almost, 50 pgs left) made it through my first book, 13 Reasons Why.
The book tells the story of Hannah Baker, a girl who just committed suicide, and the thirteen people that influenced/caused it. Hannah sends a box of cassette tapes, telling each persons story, sending the thirteen influencers through a twisted maze of memories and consequential actions.

To get a preview of the book check out this blog. It features snippets of the cassettes sent out and some photos that go along with the stories.

I'm trying to decide which book on my list is next. Dear Diary by Lesley Arfin, Editor-In-Chief of Missbehave, or Sex, Drugs, and Cocoa Puffs by Chuck Klosterman. Although I have been thinking about reading My Sister's Keeper by Jodi Picoult so I can read it before I see the movie (which comes out June 26). Out of the three which would you recommend?