The core lineup of playable characters in Suicide Squad: Kill the Justice League is a big part of the game's appeal, and each one is designed to offer a balanced experience when compared to the other options. Some mechanics and abilities can be more fun than others, however, so the playing field isn't necessarily entirely level. Although there's no wrong choice of character to play in Suicide Squad: Kill the Justice League, anyone on the fence about which member of the squad has the most appeal can consider some basic differences when coming to a conclusion.
https://screenrant.com/suicide-squad-kill-justice-league-characters-ranked/