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first its the the precrisis JLA then Post Crisis

JSA stays the same
Hawkman
the Atom
Sandman
Green Lantern Scott
Flash Garrick
Dr.Fate
Hourman
No Spectre

pre crisis
Superman
Green Lantern Jordan
Flash Allen
Wonderwoman
Aquaman
Batman
Martain Manhunter

Post crisis
Martian Manhunter
Flash Allen
Green Lantern Jordan
Green Arrow
Black Canary
Aquaman

not this is when the teams first formed so they'll have bad team work and not as much experiance as the present versions

Pre Crisis JLA wins easilly

Post Crisis JSA wins