DC Comics has long had a reputation for being a more lighthearted, traditional, and "nice" universe of superheroes and supervillains. On the other hand, Marvel Comics' shared universe is supposedly one that's grittier, more relatable, and more realistic. There are legitimate reasons for these assumptions, but they aren't as set in stone as fans of either company believe.
Source：https://www.cbr.com/dc-comics-really-darker-than-marvel/
