Here are some suggestions for matched beers or beers I think they might like after a long day of crime fighting from my taste database. I was having fun playing with the names, and didn't really think about the beer itself all that much. I'll let you make your own connections and explanations:
Batman: Barley John's Dark Knight or their Alfred's Porter, Surly Darkness, Three Floyd's Dark Lord, 21st Amendment Back in Black, Brouwerij de Molen Bat Out of Hell, Deschutes Enigma Pale Ale and Hair of the Dog Adam.
Captain America: Brew Free or Die IPA by 21st Amendment.
Cyclops: Capital EisPhyre and Granite City Double Vision,
Daredevil: AB Bare Knuckle Stout, Blue Grass Hell for Certain, Brooklyn Black Ops, Deschutes Hop in the Dark, Great Waters Fire King Coal, Magic Hat Blind Faith, New Holland Night Tripper and Victory Hop Devil.
Green Lantern: Ale Asylum Triple Nova, Dark Horse Plead the Fifth, Hillstead Farm Double Galaxy and Town Hall Solar Eclipse.Ghostrider: Bell's Hell Hath No Fury, Ale Asylum Ambergeddon, Brouwerij het Anker Lucifer, Fitger's El Diablo and Alaskan Smoked Porter.
Iron Man: Bell's Two Hearted Ale, Fulton Libertine, Gray's Rock Hard Red, Great Waters Skip & Go Naked, Jolly Pumpkin La Roja and Stone Arrogant Bastard.
Storm: Hop Back Summer Lightening, Schell's Snowstorm and Town Hall Thunderstorm.
Superman: Amnesia Slow Train Porter, Dogfish Head Immort Ale, Flossmoor Station Train Wreck of Flavor, Lagunitas Maximus and Surly Bender.
The Flash: Boulder Flashback.
The Hulk: Amnesia Brewing Amnesia Summer Ale, Elliot Bay Demolition, Great Dane Behemoth Barleywine and Surly Furious.
The Joker: Arcadia Cereal Killer, Lucky Bucket Certified Evil, Mad River Serious Madness and Magic Hat Wacko.
The Penguin: Boulder's Killer Penguin.
Underdog: Abita Turbodog, Flying Dog Doggie Style, Double Dog and Horn Dog, Hair of the Dog Doggie Claws and Thirsty Dog Old Leghumper.
Wolverine: Odell Mercenary and Rush River The Unforgiven.