One of the things that impressed me when I met JayDee Rosario at NYCC last year was his approach to the comics Unstoppable Comics was putting out. Their flagship title The Stormchasers is an Avengers/Justice League type of book, with an international cast of heroes and villains. In addition to the ongoing series, there is a character guide that offers more info on the characters and the world they inhabit, which I think is brilliant (and more creators should be doing).
The world of The Stormchasers has gotten even bigger as we head into issue #6, due to the crisis at hand. One of the old guard Ms. Freedom, enlisted The Stormchasers to help rescue her kidnapped daughter. That team was taken down, and issue #5 saw Ms. Freedom recruit a group of former members to try again. Issue #6 shows Ms. Freedom strategizing with the new team, and putting the plan into action.
In addition to the strong story by writer and creator JayDee Rosario, the art by Russ Leach (who came on board with issue #5) is fantastic. The book has a real Justice League vs. Legion of Doom feel to it, as the cast of characters is constantly evolving.
If you haven't checked out the series yet, I highly recommend it.