What role do teams play in each universe (e.g., Justice League vs. Avengers)?

Both the Justice League and the Avengers serve as the primary superhero teams, protecting their worlds from large-scale threats. The Justice League often deals with cosmic and existential threats, reflecting DC's grander scale. The Avengers frequently face threats to Earth and the solar system, aligning with Marvel's more grounded focus. The Justice League often has a more formal, governmental connection, while the Avengers are more independent.