You vote for the one who you like more, not's who's the strongest one in a fight and have fun:
Brainiac 5 vs. Indigo (Brainiac 8)
The Ventriloquist (Arnold Wesker) vs. Lilith Clay
Parasite (Rudy Jones) vs. Aura
Robotman (Cliff Steele) vs. Strix
Plastic Man vs. Rose Wilson
Elasti-Girl vs. Dr. Destiny
Mammoth vs. Bumblebee
The Anti-Monitor vs. Equinox (Miiyahbin Marten)
Green Lantern (Mogo) vs. Terra (Tara Markov)
Bane vs. Green Lantern (Simon Baz)
The Scarecrow vs. Freak
Green Lantern (Tomar-Re) vs. Bombshell
Ms. Martian vs. Starbreaker
Despero vs. Jessica Cruz
The Shade (Richard Swift) vs. Artemis Crock
The Gentleman Ghost vs. Mr. Miracle (Shilo Norman)
Dove (Dawn Granger) vs. Major Disaster
Klarion the Witch Boy vs. Red Lantern (Dex-Starr)
The Cheetah (Barbara Minerva) vs. Empress
Brainiac vs. Stephanie Brown
Kalibak vs. Hawk (Hank Hall)
Atom Smasher (Al Rothstein) vs. Ultraa
Max Mercury vs. Red Lantern (Atrocitus)
Professor Zoom vs. Sarah Rainmaker
Livewire (Leslie Willis) vs. Skyrocket (Celia Forrestal)
Jade (Jennie-Lynn Hayden) vs. Lady Shiva
The Psycho-Pirate (Roger Hayden) vs. Natasha Irons
Weather Wizard vs. Speedy (Mia Dearden)
Blue Beetle (Jaime Reyes) vs. King Shark
Ra's al Ghul vs. Darkfire
Superboy-Prime vs. Triumph
Phantom Lady (Jennifer Knight) vs. Jericho
Clayface (Basil Karlo) vs. Terra (Atlee)
Rampage vs. Vibe
Lightning Lad vs. Maxima
The Brain vs. Zan
Lightning Lass vs. Secret
The Creeper (Jack Ryder) vs. Green Lantern (G'nort)
O.M.A.C. (Buddy Blank) vs. Maxwell Lord
Bizarro vs. Steel (Hank Heywood III)
Ares vs. Damage
Count Vertigo vs. Metron
General Zod vs. Bulleteer (Alix Harrow)
Mirror Master (Sam Scudder) vs. Sparx
Metallo vs. Icon
Solomon Grundy vs. Hourman (Rex Tyler)
Wildfire (Drake Burroughs) vs. Zachary Zatara
Monsieur Mallah vs. Jayna
Cosmic Boy vs. Magenta
Dream Girl vs. Malcolm Duncan
Dr. Polaris (Neal Emerson) vs. Geo-Force
Amazo vs. Rocket Red (Dmitri Pushkin)
Toyman (Winslow Schott) vs. Sapphire (Candy Gennaro)
Harley Quinn vs. Pantha
Captain Comet vs. Kanjar Ro
Killer Frost (Caitlin Snow) vs. Dawnstar
Firestorm (Raymond & Rusch) vs. Gehenna
Aqualad (Kaldur'ahm) vs. Sargon the Sorcerer (John Sargent)
Maxie Zeus vs. Dr. Light (Kimiyo Hoshi)
Black Manta vs. Aquagirl (Lorena Marquez)
Rip Hunter vs. Chronos (David Clinton)
Cheshire vs. Grunge
The Key II vs. Amazing Man (Will Everett III)
Steel (John Irons) vs. Hardrock