Nexus and Booster Gold
The one major complaint I hear about DC films is that there is not enough humor in them.  For me, it depends on the story and character.  Marvel's movies have had plenty of humor, some has worked well (Guardians of the Galaxy), and some of it has been a distraction (Thor: The Dark World).   I'm thinking DC has a real opportunity with the announced Blue Beetle/Booster Gold film to be able to really stretch their comedic muscles.  They are a great funny buddy team in the comics and I think if cast well, they will be a blast to watch on the big screen.