I understand James Gunn (Slither, Guardians of the Galaxy, Vol. 1 & 2) says that Marvel Studios isn’t competing with DC Entertainment and that there’s no bad blood between the two studios.
Which also happens to be a perspective shared by Kevin Feige and Geoff Johns (the heads of Marvel Studios and DC Entertainment, respectively).
That being said, long before there was a Marvel Studios, Marvel Comics was–quite actively in fact–competing with DC Comics (and still are). And sure, it was for the most part good-natured, but that didn’t make it any less a competition.
And that competition benefitted both companies.
But now that that relationship has become inconvenient–I get it. It gets really old that people Tweet him, arguing back and forth about Batman V Superman–but what’s he’s doing is acting as if this conflict, this schism between fans of these characters wasn’t at various points fed and promoted by both DC and Marvel.
And that doesn’t mean that it needs– or should–be continued today, but by seemingly pretending not to see how both companies have contributed to the very problem he’s concerned about is blatantly unfair and unbecoming of someone who’s not only shown himself to be a fan of these characters, but an active participant in the community, as Gunn.
This is on top of the very valid view that Zack Snyder–who was for a time the creative force behind the DCEU–seriously mistreated Batman and Superman, which Gunn seems to not at all willing to take into account.