You vote for the one who you like more, not's who's the strongest one in a fight and have fun:
White Tiger (Ava Ayala) vs. Hobgoblin (Roderick Kingsley)
Annihilus vs. Pixie (Megan Gwynn)
Dr. Octopus (Otto Octavius) vs. Shark-Girl
Justice vs. Madelyne Pryor
Hepzibah vs. The Molecule Man
Carnage vs. Armor (Hisako Ichiki)
War Machine (James Rhodes) vs. The Shocker (Herman Schultz)
Man-Ape vs. Squirrel Girl
Julia Carpenter vs. The Walrus
Gamora vs. Proteus
Diamondback (Rachel Leighton) vs. Elixir
Apocalypse vs. X-Man (Nate Grey)
Baron von Strucker vs. Sage
Arnim Zola vs. Transonic
Blade vs. Emplate
The Supreme Intelligence vs. Genis-Vell
Sabretooth vs. Machine Man
The Absorbing Man vs. Karma
Ms. Marvel (Kamala Khan) vs. Speed Demon
Ghost Rider (Johnny Blaze) vs. The Shadow King
Green Goblin (Norman Osborn) vs. Dr. Nemesis (James Bradley)
The Mandarin vs. Cipher (Alisa Tager)
Mr. Sinister vs. Angela
Vertigo vs. The Sentry (Robert Reynolds)
Nick Fury Sr. vs. Stryfe
Klaw vs. Oya (Idie Okwonko)
Wonder Man vs. The Radioactive Man (Chen Lu)
Ronan the Accuser vs. Blindfold
Titania (Mary MacPherran) vs. Magma (Amara Aquilla)
Jessica Jones-Cage vs. Cassandra Nova
Amora the Enchantress vs. Skids
Night Trasher (Dwayne Taylor) vs. Dracula
Attuma vs. Loa
Cannonball vs. The Grizzly (Maxwell Markham)
Mystique vs. Spider-Girl (Anya Corazon)
The Leader vs. Bling!
Ant-Man (Scott Lang) vs. Stilt-Man (Wilbur Day)
Dragon Man vs. Hope Summers
Banshee (Sean Cassidy) vs. The Spot
Spider-Man (Miguel O'Hara) vs. Trevor Fitzroy
Shang-Chi vs. Moonstone (Karla Sofen)
Boomerang vs. Tempus (Eva Bell)
Sunspot vs. The Kangaroo (Brian Hibbs)
Typhoid Mary vs. Hellion (Julian Keller)
Spider-Woman (Jessica Drew) vs. Big Wheel
The Owl vs. Quentin Quire
Howard the Duck vs. Calypso
Blizzard (Donald Gill) vs. Dust (Sooraya Qadir)
Starfox vs. Mojo
Korvac vs. Phyla-Vell
Galactus vs. Sleepwalker
Black Knight (Dane Whitman) vs. Moses Magnum
Grey Gargoyle vs. Mercury (Cessily Kincaid)
Baron Zemo (Helmut) vs. Trance
Blastaar vs. Surge (Noriko Ashida)
Taskmaster vs. Chamber
Ego the Living Planet vs. Lilandra
Thanos vs. Caliban
The Super-Skrull vs. Mar-Vell
Graviton vs. Silk
Misty Knight vs. Silver Samurai (Shin Harada)
Angel (Warren Worthington III) vs. The Gibbon (Marty Blank)
Speedball (Robbie Baldwin) vs. Morbius
Luke Cage vs. The Vulture (Adrian Toomes)