When giant crossovers are done right, and infrequently, they can be amazing. I thought the entire War Games crossover was pure gold. There was one, focused story, it ran through the entire Batman Family of books, none of it felt forced, none of it felt padded out. It was on point and a great read.
Basically, for a year, we got a story that took place over the course of a few days. Batman had fired Stephanie Brown as Robin. She still wanted to prove her worth to Batman and it backfired in her face. Batman has contingency plans for everything. EVERYTHING. Stephanie took one of those plans and unintentionally turned it into a reality, sparking the biggest mob war in Gotham's history. It took all of Batman's associates to end it, but it did so much damage to Batman's standing in Gotham, his allies standing in Gotham, and his own relationship with his allies that it took years to fix.
It really is a great story with amazing consequences that laid the groundwork for more stories. That's the sign of a great "event story."
Batman: War Games Book Two
Writer: Anderson Gabrych, A.J. Lieberman, Devin Grayson, Bill Willingham, Dylan Horrocks, Ed Brubaker, Bruce Jones, Russell Lissan
Artist: Pete Woods, Cam Smith, Brad Walker, Troy Nixey, Mike Lilly, Andy Owens, Al Barrionuevo, Francis Portella, Jon Proctor, Robert Campanella, Rodney Ramos, Mike Huddleston, Jesse Delperdang, Paul Gulacy, Jimmy Palmiotti, Kinsun, Aaron Sowd, Sean Phillips, Thomas Derenick, Adam DeKraker, Drew Geraci, Paul Lee, Brian Horton, Eddy Barrows, Jay Leisten, Chris Marrinan, Andrew Pepoy, BIT, Giuseppe Camuncoli, Sandre Hope