A - Aquaman, Bane, Batgirl, Batman, Black Adam, Doomsday, The Flash, Green Arrow, Green Lantern, Killer Frost, Lobo, Martian Manhunter, Superman, Wonder Woman, Zod
B - Ares, Catwoman, Cyborg, Deathstroke, Harlee Quinn, Hawkgirl, Lex Luthor, Nightwing, Raven, Scorpion, Shazam, Sinestro, Solomon Grundy, Zatanna
C - The Joker
A, Characters with minimal weaknesses.
B, Characters with apparent weaknesses.
C, Characters with obvious weaknesses.
The Joker cannot zone or counter-zone because his projectiles are both slow and have very long recovery. He cannot poke because all of his damaging pokes lack the range or speed and his fast pokes lead to abysmal damage. He cannot get in because he lacks a move that allows him to do this as well as having a below average forward dash. He has one of the worst wake-up kits in the game. Felt the need to justify why The Joker is by himself lol.