Well... maybe not all over the Oscars, but they did have a significant presence.
Big Hero 6 is a Marvel/Disney product and won Best Animated Feature Film.
Guardians of the Galaxy was nominated for Best Makeup and Hairstyling (category won by The Grand Budapest Hotel).
Captain America: The Winter Soldier; Guardians of the Galaxy; and X-Men: Days of Future Past were 3 of the 5 nominees for Best Visual Effects (category won by Interstellar).
J.K. Simmons (who played J. Jonah Jameson in the original series of Spider-Man films - and, who many Spidey fans would love to see return to the role) won as Supporting Actor for his role in Whiplash.
Bradley Cooper (who played Rocket in Guardians of the Galaxy) was nominated for Best Actor for his role as Chris Kyle in American Sniper.
Benedict Cumberbatch (who will portray Doctor Strange in the upcoming Doctor Strange movie) was also nominated for Best Actor for his role as Alan Turing in The Imitation Game.
Edward Norton (who played Bruce Banner/The Hulk in The Incredible Hulk) was nominated for Best Supporting Actor for his role as Mike Shiner in Birdman or The Unexpected Virtue of Ignorance.
Mark Ruffalo (who played Bruce Banner/The Hulk in Marvel's The Avengers) was also nominated for Best Supporting Actor for his role as Dave Schultz in Foxcatcher.
Update: And, although he wasn't nominated for anything, Channing Tatum (who will be playing Gambit in his own movie, Gambit, and in X-Men: Apocalypse) played Rufalo's brother, Mark Schultz, in Foxcatcher.
(Thanks to Kemian Carson for noting that one)
Emma Stone (who played Gwen Stacy in The Amazing Spider-Man series) was nominated for Best Supporting Actress for her role as the Birdman's daughter, Sam Thomson in Birdman or The Unexpected Virtue of Ignorance.
Meryl Streep - well... Mery Streep. She hasn't been in anything Marvel, yet, but, according to the Academy Awards Show, California State Law requires she be nominated - her being a national treasure and all...
And, although he wasn't nominated for anything, Robert Downy, Jr. (who plays Iron Man in his own movies (Iron Man 1, 2 & 3 and in Marvel's Avengers) was a significant player in The Judge where his "father," Robert Duvall, was nominated as Best Supporting Actor for his role as Judge Joseph Palmer.
DC had Michael Keaton (who played Batman/Bruce Wayne in Batman and Batman Returns) was nominated as the head-case... 'er, Birdman/Riggan Thomson in Birdman or The Unexpected Virtue of Ignorance.
And, interestingly, several superhero-esque movies gained recognition at this years Oscars:
Birdman won the Oscar for Best Picture. It was a story of an actor who played a blockbuster superhero and was working to get a story written for the theater. But, he's still haunted by the voice of his old role, Birdman.
It's a reach, but Bradley Cooper's subject in American Sniper as Chris Kyle, is a real-life Hawkeye/Green Arrow.
Also a reach, Benedict Cumberbatch's subject in The Imitation Game, Alan Turing, is a real-life super-scientist in the vein of Henry Pym or Howard Stark.
Into the Woods was a Disney live-action fairy tale feature and, historically, Disney has been pretty much overlooked in that arena - except for music and effects.
Boxtrolls was a fantasy story that was lighter and more fun than the X-Men, but ... hey, they're still oddlings, right?
Interstellar was a hoot in the vein of Guardians of the Galaxy.
The LEGO Movie clearly had the heavy support of superheroes such as Batman/Bruce Wayne (Will Arnett), Green Lantern (Jonah Hill), Wonder Woman (Cobie Smulders), and Superman (Channing Tatum) plus a number of characters from Star Wars (light sabers and "the Force", anyone?).
It does appear that way, doesn't it? Maybe... if such "fantastic" movies as these can begin to crack the facade that so elegantly graces the Academy of Motion Pictures Arts & Sciences, we may, someday, see serious consideration for our heroes and heroines. And, if Marvel, DC, Dark Horse and other comic producers (Josey & The Pussycats was an Archie Comics concoction - that will probably never be in line for an Oscar...) can keep improving their cinematic offerings, they may well kick down the doors and seize the awards.
Well... until then... we still have a huge slate of offerings from both Marvel (from 3 different studios, none-the-less) and DC that we will be enjoying for the foreseeable future.