Killer plague would be sweet(but it didn't make the list)! I'm sure I could find a use for all the stuff that would be lying around in need of a new owner. Nuclear Wasteland would suck, nothing to eat, darkness, radiation induced skin boils, bleh! Zombie Infestation could be fun I guess, assuming that nothing went wrong with the world's ammo supply, and also assuming that these are the variety of zombie that can be killed. Alien Invasion is too broad. A lot would depend on just what type of aliens and what kind of technology that they have. Wouldn't want to do a Dystopian.