All of the above? The only thing I require my comics to be is good.
Yokai said:
90% of the time they're aimed at younger audiences and remain strictly PG-13.
Haha, what? Have you read any Superhero comics lately? They're all about such brilliantly mature themes such as excessive gore and ridiculously hyper-sexualised fanservice (disclaimer: hyperbolic exaggeration
may be present here - there are a few comics that don't adhere to this standard).
But yeah, the idea that comics are aimed at kids has been false ever since those kids grew up into adults, whilst no new younger audience was exposed to comics.