Almost everyone working in mainstream comics started off as a starry-eyed kid reading and loving comics. We're all fans, and that's great. But when we start working on company-owned comics professionally, we have to think like storytellers instead of fans. Editors aren't looking to hire the biggest fans of the characters. They're looking to hire the best creators with the best ideas.
The good news is that the comics field is small enough and informal enough that once you have made a comic, you have achieved your dreams: you have broken into the comics industry. The problem with breaking in, though, is that staying in is harder.
Don't slag off other creators or companies. We'll cheerfully mock dumb politicians on Twitter, but we try to never slam another creator's work or make fun of another company's projects or initiatives. First, because life's too short. We'd rather use that time to celebrate the fantastic work of colleagues and friends. Second, because it's a small world, and people have long memories. A few snarky words today can ruin a chance for an incredibly rewarding creative partnership tomorrow.
My favorite kinds of stories are the ones that have these big crazy genre hijinks and then a real honest, meaty, emotional story where we're watching a character grapple with some real things.