I'll Give You the Sun by Jandy Nelson

I really liked the different perspectives of this story.  First, the narrators are twins.  However, they tell the story from different points in time, so we never know what they both thought while they were a certain age.  Noah, the boy, tells his point of view from age 13-14, where he is quiet while his sister is outgoing.  Then Jude jumps in with her perspective at age 16 or 17.  The chapters switch off who is telling the story, and overall the intertwined yet separate story lines reflect the twins quite well.
The two twins are artists, like their mother, and they are aware that Jude is their dad's favorite.  However, when they are applying to art school, the two learn something new; they thought their mom didn't have a favorite, but it turns out she does, and it's Noah.  This revelation is one of many that leads to the twins' ultimate falling out.  They are both keeping secrets after their mother's death, and we learn about them from the other twins' point of view.
Really, the writing in this book is amazing, and I recommend it 100%.