That may be true, but there's a reason why that's getting better reception among viewers/fans than DC is--the history behind the comics. Cliches and cookie-cutter plots were the backbone of both DC and Marvel comics back in the day, and there's a certain charm to them that's distinctly "comic book-y." Marvel recognizes this fact, and thus makes films that, while touching on more adult themes, still retain the fun, zany aspect of a lot of the old comics.
For DC, it's the opposite--they seem to be convinced that the only way to make an adequate superhero film for a modern audience is to inject copious amounts of grit, angst, and general darkness, which seems incongruous when you consider the fact that these characters are jumping around in brightly colored spandex. It just doesn't fit.
Now, of course, both Marvel and DC have characters and stories with darker elements--Batman being the prime example for DC. The Christian Bale movies worked well because the filmmakers weren't trying to turn something that was once lighthearted into a dark grimfest--Batman was already that way. But Superman? Wonder Woman? Aquaman? The look and feel of those characters don't mesh well with DC's current approach to filmmaking, which is why they are adapted...but in the adaptation, the old flavor of the characters is lost, and fans are disappointed. Yes, it's not "cookie-cutter," but in trying to break the mold, it both succeeds and fails--it succeeds at creating something new, but fails at representing what already was.