JLA/Avengers was a DC and Marvel company crossover that was published in 2003. It was a very successful crossover and had an impact on comic book continuity, establishing canons for both comic book franchises. DC and Marvel are powerhouses, currently dominating the comic book market and influencing various media such as television, film, and radio; that is, popular culture in general.
Competition between both companies has been going on for decades, and at the present time, movie performance shows that Marvel has the upper hand. DC and Marvel show different science fictional and narrative styles treating themes such as heroism, science, and mythology in different manners.
This blog has a bias for DC for its more mythological take on its comic book superheroes and of the importance of heroism in the battle between good and evil. There is no doubt, however, that Marvel is also successful at producing more relatable superheroes, characters that seem to reveal more effectively the popular zeitgeist and the American spirit.
In the end, it is a matter of personal preference and stylistic choice. I think, comic book literature has the power to truly capture the minds of the popular culture and inspire the present generation towards a world where civilization has reached, in a sense, metahistory.
Will the current trend in movies remain? That is, can the comic book continue to influence popular culture, even in cinematography? It is possible. At the same time, it is safe to assume that, culture is remarkable for its ability to adapt and generate new forms, new ways of literature and entertainment.
DC is awesome!