One of the cool things about this book is how it was written - John Green wrote one Will Grayson & David Levithan wrote the other. They are different, but not as different as you'd probably find with an author who wrote them both, because in that case they'd probably be perfectly juxtaposed except in one area to prove some point or another. So the main focus of this book isn't really to compare them with each other. Which is pleasantly unexpected. My favorite thing about this story is that the teenagers were like real teenagers. They swore, had bad attitudes, screwed up, got angry, and struggled with themselves and each other. It's so much better than the bleached out and overly-simplified YA characters I'm used to reading and more like how I remember being an adolescent. They had depth and meaning beyond their roles in the plot. They were flawed like real human beings, not because it's a genre convention. It's hard for me to imagine a high school allowing a musical with these lyrics, or even a character like Tiny (is it really that easy for a gay 16 year old to find so many boyfriends?) I don't know. It doesn't really matter. It's a great book.