CAPTAIN MARVEL. Debuted 1940, Fawcett Publications: One of my all-time favorite superhero comics.
SHAZAM (formerly known as Captain Marvel). Debuting 2012, DC Comics: …What the fuck?!?!?!
“This is a one-shot from DC’s continuing attempts to drag the Marvel Family into the mainstream as represented by the shared universe of DC Comics superheroes. I’m sure comics like this have an audience that loves them and that some of the creators do a very nice job, but these always seem wrong to me on a fundamental level, like trying to work Big Bird into episodes of Mad Men just because of an accident that gives them shared ownership.”
— Tom Spurgeon, 25 January 2011 on Shazam #1, 2011.