........ The Justice League Vs Hank Pym"s Avengers ..........

Who wins?
No prep..

The Justice League

Green Arrow
Shazam
G.L Stewart
Hawkgirl
Firestorm
Raven
Hawkman

Vs

Hank Pym's Avengers

Hawkeye
Wonder Man
Victor Mancha
Quicksilver
Vision
Scarlet Witch (classic)
Hank Pym

Avengers are made of friends of Hank Pym..
The Justice League team is made up of some of my favorites..

Scarlet Witch clasic as in simple probability altering hexes or Chthonian magic?
not that it's gonna make a difference since Shazam, GL and Firestorm tip the scales for T1

Pym is better friends with Thor than most people here.

Giantman
Thor
Ultron

Would be my team.

Yes PYM but then the fight would be to easy

Shazam, GL John & Firestorm
Vs
Ultron & Thor

Is a good fight.

The Justice League