Here's my list enjoy took me a couple hours may not be good but read on anyway!
BATMAN and SPIDERMAN
Batman Spiderman
Robin Alpha
Batgirl Spidergirl
Batwoman Spiderwoman
Catwoman Black Cat
Nightwing Daredevil
Kaine Red Hood
Joker Green Goblin
Harley Quinn Hobgoblin
Mr Freeze Doc Ock
Chameleon Hush
Scarecrow Vulture
Deathstroke Deadpool
Riddler Mysterio
Venom Bane
Carnage Mr. Zsasz
Two Face Electro
Sandman Clayface
Penguin Kingpin
Hammerhead Blackmask
Tombstone Great White Shark
White Rabbit White Bunny
Polka Dotman The Spot
Mirage Everywhereman
Puma Bronze Tiger
Lizard Killer Croc
Rhino Man Bat
Prowler Wrath
Scorpion Poison Ivy
JLI and X-MEN
Wolverine Guy Gardener
Rouge Gypsy
Cyclops Ray
Ice Iceman
Fire Pheonix
Nightcrawler Creeper
Gambit Obsidian
Tasmainian Devil Beast
Hawkman Angel
Hawkgirl Angel 2
Vixen Storm
Dr Fate Dr Strange
JUSTICE LEAGUE and AVENGERS
Captain America Superman
Green Lantern Iron Man
Wonder Woman Thor
Batman Spiderman
Flash Hulk
Aquaman Namor
Black Canary Mockingbird
Green Arrow Hawkeye
Martian Manhunter Vision
Vision 2 Red Tornado
Antman Atom
Wasp Molocule
LEGION OF SUPERHEROES and GUARDIANS OF THE GALAXY
Cosmicboy Adam Warlock
Rocket Racoon Matter Eater Lad
Saturngirl Gamora
Groot Tusker
Drax Wildfire
Star Lord Atomic Knight
SUICIDE SQUAD and THUNDERBOLTS/ SHIELD and TASK FORCE X
Sergent Rock Nick Fury
Huntress Black Widow
Henry Gyrich Amanda Waller
Bullseye and Deadshot
JUSTICE LEAGUE and FANTASTIC FOUR
Mr. Fantastic Plasticman
Invisible Woman Dr Light
The Thing Bulletman
Human Torch Firestorm
Watcher Monitor
Silver Surfer Pariah
Dr. Doom Vandal Savage
THOR and WONDER WOMAN
Thor Wonder Woman
Jane Foster Steve Trevor
Thorgirl Wonder Girl
Sif Mala
Hiemdell Nubia
Fandral Sofia
Volstagg Orana
Hogan Phillippus
Man Beast Cheetah
Enchantress Dr.Psycho
Loki Circe
Exocutioner Genocide
MASTERS OF EVIL and SECRET SOCIETY OF SUPER VILLIANS
Red Skull Lex Luthor
Enchantress Dr. Psycho
Dr. Doom Vandal Savage
Tiger Shark Black Manta
HULK and FLASH
Hulk Flash
Zzzax Weather Wizard
Maestro Professor Zoom
Leader Captain Cold
Abomination Reverse Flash
Thanks for checking out this list, I hope to update it and if anyone has any ideas or suggestions let me know in the comments below!