Drama is more focused and it reveals itself to you, whereas comedy is just right there, when you first read it.
Bob OdenkirkNot to knock the people who've given me the opportunity; I appreciate all the opportunities I've gotten, but one of the things I think I really learned from the features I got to direct is that your job as a director is everything about the movie. It's to pick a story that's really worth making, and make sure that the basic components are there. You're not just a part of the team. You're really in charge, and the responsibility falls on you if all the components aren't there for a worthwhile film.
Bob Odenkirk