J.J. Abrams and Joss Whedon are two of the most imaginative and accomplished men in Hollywood. As writers, directors, producers, and series creators, their credits have straddled the mediums of television and film and range across several genres, from science fiction and horror to action and drama. In addition to spearheading original projects like Lost and Buffy the Vampire Slayer, each has also made his mark on some of the most successful franchises...