Ancient stuff. I did the pencil drawing in 2001, posted somewhere in my gallery. This was inspired by the old Perez pin-up/panel. I included unofficial members (but helpful allies) like Catwoman and Agatha Harkness.
Ok I think I've finally figured them out. DC side: Batman, Superman, John Stewart, Flash, Robin, Wonder Woman, Aqua man, Hawk man, Zauriel, Captain Marvel, Martian Manhunter, Atom, Adam Strange, Animal Man, Booster Gold, Creeper, Kyle Rayner, Guy Gardner, Atom Smasher, Cat woman, Hawk girl, Green Arrow, Wonder Girl, Zatanna, Black Canary, Blue Beetle, Captain Atom, Elongated Man, Plastic Man, Steel, Red Tornado, Metamorpho, Another Aqua Man?, Dr. Fate, Fire, Firestorm, Ice, Jade, Mr. Miracle, Orion, Specter, Tasmanian Devil, Vixen, Light ray, Ray, Despero, Blue Devil, Ice maiden, Amazing Man, Aztek, Big Barda, Faith, Monitou Raven, Black Lightning, Tomorrow Woman, Connor Hawke, Crimson Fox, Huntress, Major Disaster, Maxima, Dr. Light II, Oracle, Bronze Tiger, Hour man III, Gypsy, Power Girl, and Jason Blood. MARVEL side: Captain America, Black Widow, Iron Man, War Machine, Thor, Hulk, Black Panther, Beast, Amadeus Cho, Ant Man, wasp, Hawkeye, Spiderman, Captain Marvel, Black Knight, Dr. Druid, Arachne, hellcat, Scarlet Witch, Quicksilver, Thing, Invisible Woman, Mr. Fantastic, Human Torch, Namor, Jack of Hearts, U.S. Agent, Vision, Firestar, Falcon, Machine Man, Wonder Man, Swordsman, Moon Knight, Hercules, Giant Man, Ms. Marvel, Tigra, Thunder strike, She Hulk, Magdalene, Genis-vell, Moon Dragon, Sersi, Rage, Living Lightning, Silver claw, Songbird, Star fox, Stingray, Star hawk, Firebird, Mantis, Mockingbird, Sandman, Marrina, Quasar, Death cry, Red Wolf, Yondu, Justice, Dark hawk, Crystal, Demolition Man, Agatha Harkness, and Pulsar! Tell me anyones I missed or got wrong.