I had started a thread for this last year, but it didn't reopen when the next Z-Day started, so I'm making a new one.
Something that would be convenient for me would be some way to view a sortable list of all of the nations in my region that had chosen a certain response to the zombies. For example, a list of nations embracing the zombies sorted by number of zombies could be used to decide which nations to send kill squads to.