Squirrel girl, he just summon trollforce Aizen
Emperor Joker, he just erase him from the drawing board
Deadpool, rip his page out
Pre-Crisis Superman, really. If he can beat Omni-potence, Superman is nothing to him
Johny Cage, depends.......
Bugs Bunny, again, just send in trollforce Aizen. Remember at MF where trollforce Aizen > Toonforce Bugs xD
Kubo's boss is the only weakness, I guess........