I've been going out with DWWW for the past 6 years. It is a fantastic family owned company with great owners, captains and crew. The two vessels you will likely end up on are the Dana Pride or the Ocean Adventure, a beautiful catamaran which provides great opportunities for cetacean photography.
Captains Todd Mansur, Frank Brennen, Corey Hall, and Chris Pica are extremely knowledgable about the wildlife that you'll encounter along the Southern California Bight.