Moo, Baa, La, La, La is his ultimate favorite. It has been since he was about 3 months old. If he was screaming, you could rest assured that he would stop if you pulled out this book. I love Sandra Boynton books! We also have her book Opposites and it's also a hit with B.
Goodnight Moon. We have read this to him since the first night he was home from the hospital. I like it's simplicity for when he was younger, and now I can point out the objects for him to "find."
Where's Spot is a recent favorite. I've noticed that he will pull it out on his own. At first he wasn't that thrilled with it, but he really likes the hidden animals behind the flaps. Sometimes he will want me to read it more than once. Kind of cute, although it does get old!
Another recent favorite is The Very Hungry Caterpillar. He loves the part where it lists all the junk food the caterpillar eats... hopefully this is not foreshadowing L)
For Christmas my parents bought him a couple of books, and one was The Nose Book. I have no clue why, but the kid LOVES it. He'll smile when I pull it out and ask him if he wants to read it.
We read lots of books at our house. I feel like reading to your children helps encourage their desire to learn and increases their vocabulary. And if nothing else, it fills the time in between them crying or changing a dirty diaper... and who doesn't need that?!