My favorite book as a kid was Green Eggs and Ham by Dr. Seuss. I liked this book because it teaches kids good life lessons. First it teaches them to try new things in the book because Sam offers green eggs and ham to the other character multiple times and he keeps saying no. Finally he tries them and really likes them. Second i'm not sure if anyone else got this out of the book, but I got be persistent. Sam offers the other character time after time and keeps getting rejected, but finally he says yes. Those are the reasons I liked the book Green Eggs and ham as a child hope you liked it too.
http://www.commonsensemedia.org/book-reviews/green-eggs-and-ham
http://storytimeforme.com/topics/green-eggs-and-ham/