Your genius is to figure out which ones, and when and where to tell them. The only thing worse than a hack, is an ignorant hack. We do live in a multimedia super information highway and it is hard to keep it pure. Good dialogue is something that I get the most credit for and have the least to say about. David Mamet says that having a good ear for dialogue is the professional ability to talk to yourself.
Real characters run the gambit of human emotion.
They have contradicting attitudes, motivations, and ideals. There hasn't been one relationship anxiety, or conundrum in my life that hasn't hugely benefited by the fact that I have a forum in which to address and analyze it. Nothing sings to the reader more then when you write from the heart. You should see how many this took. A lot of writers, especially in comics, throw in every gag they can think of regardless to whether or not they are sacrificing the story momentum or mood of the piece.