You vote for the one who you like more, not who's the strongest one in a fight and have fun:
War Machine (James Rhodes) vs. The Crimson Cowl (Justine Hammer)
Shatterstar vs. Venom (Eddie Brock)
Northstar vs. Crimson Dynamo (Dmitri Bukharin)
Talisman (Elizabeth Twoyoungmen) vs. Electro (Max Dillon)
Aurora vs. Titanium Man (Boris Bullski)
Jack of Hearts vs. Scalphunter
Moondragon vs. Dragon Man
Mar-Vell vs. Blastaar
Star-Lord (Peter Quill) vs. Vapor (Ann Darnell)
Jubilee vs. Radioactive Man (Chen Lu)
Pixie (Megan Gwynn) vs. Hydro-Man (Morrie Bench)
Dr. Nemesis (James Bradley) vs. M.O.D.O.K.
Groot vs. Ironclad
Nova (Richard Rider) vs. Annihilus
Namora vs. Scrambler
Rocket Raccoon vs. X-Ray
Colleen Wing vs. The Porcupine (Roger Gocking)
Cecilia Reyes vs. The Leader
Gamora vs. Vector (Simon Utrecht)
Longshot vs. The Hypno-Hustler
Marrow vs. Thunderball
Ghost Rider (Johnny Blaze) vs. Sin
Luke Cage vs. The High Evolutionary
The Scarlet Spider (Ben Reilly) vs. Hyperion (Marcus Milton)
Blade vs. Daken
Sasquatch (Walter Langkowski) vs. Egghead (Elihas Starr)
Xavin vs. Toad
Cloak vs. Vermin
Speedball (Robbie Baldwin) vs. Big Wheel
Hepzibah vs. The Abomination
Wolfsbane vs. Bullseye
Hogun the Grim vs. Oracle
Silk vs. Prism
Mystique vs. Snowbird
Volstagg vs. D'Ken
Finesse vs. Rhino (Aleksei Sytsevich)
Ms. America (America Chavez) vs. The Red Skull (Johann Schmidt)
Fandral the Dashing vs. Deathbird
Blue Marvel vs. Riptide
Forge vs. The Mandarin
Kingpin (Wilson Fisk) vs. Puck (Eugene Judd)
Stingray vs. Harpoon
The Shocker (Herman Schultz) vs. Vindicator (Heather Hudson)
Odin vs. Sauron
Pete Wisdom vs. The Wrecker (Dirk Garthwaite)
Ultron vs. Shaman
Maggott vs. Bulldozer (Henry Camp)
Rachel Summers vs. The Puppet Master
The Wasp (Nadia Pym) vs. Blockbuster (Michael Baer)
Moonstone (Karla Sofen) vs. Guardian (James Hudson, Jr.)
Night Trasher (Dwayne Taylor) vs. Vertigo
The Human Torch (Jim Hammond) vs. Warlord Krang
Hope Summers vs. The Vulture (Adrian Toomes)
Firestar vs. Attuma
Sleepwalker vs. Arclight
Shanna the She-Devil vs. Tusk
Slipstream vs. Titania (Mary MacPherran)
White Tiger (Ava Ayala) vs. Man-Ape
Rictor vs. Carnage
Lockjaw vs. The Vanisher
Lifeguard vs. The Absorbing Man
Theresa Cassidy vs. Shriek
Tempus (Eva Bell) vs. Piledriver
Captain America (Sam Wilson) vs. Whiplash (Anton Vanko)