Depends what type of zombies and what type of plague. If the plague is an airborne one, definitely not, but if not maybe. And as for zombies, it comes down to the eternal question of: the fast or the slow ones? I mean slow ones are nasty, but get yourself a nice setup eg Dawn of the Dead (original) and you have an easy enough life ahead of you.
Nuclear would be fun, but civilization would be shot to shit, so no more buildings or comforts, at least in Zombie World there is loads to salvage. Massive floods would again mean you need a boat to do anything really, and climate change, well I don't fancy living in an Ice Age. I imagine the meteor would have the same affect as Nuclear War really, although I dunno about radiation etc, from meteors. Final option of Biblical, well its not real, so nothing actually changes, so yeah actually, Biblical.