Where do we sign up? For this list, were looking at the very best superhero teams in comics to decide once and for all which team are earth's greatest heroes. Our countdown includes The Avengers, The Teen Titans, The X-Men, The League of Extraordinary Gentlemen, The Teenage Mutant Ninja Turtles, and more! Did YOUR favorite superhero team make the list? Let us know in the comments!Watch more great superhero videos here: Top 20 Superheroes Of All Time: