Don't really agree with some of these - and a lot of great stories left off. Definitely agree with #9, which is my favorite Justice League story. Also agree with #s 7, 4, and 2. What do you think?
https://www.newsarama.com/37412-top-...-all-time.html
10. Origin - New 52 by Geoff Johns and Jim Lee
9. No Man Escapes The Manhunters - Steve Englehart and Dick Dillin
8. Justice League of America from Brave and the Bold - Gardner Fox and Mike Sekowsky
7. Tower of Babel - Mark Waid and Howard Porter
6. The Tornado's Path - Brad Meltzer and Ed Benes
5. A Midsummer's Nightmare - Mark Waid and Jeff Johnson/Darick Robertson
4. Justice - Jim Krueger and Alex Ross/Doug Braithwaite
3. Divided We Fall - Mark Waid and Bryan Hitch
2. A New Beginning - Keith Giffen, J.M. Dematteis, and Kevin Maguire
1. Rock of Ages - Grant Morrison and Howard Porter