Maybe you have been cursed with a fate worse than death for breaking into a tomb.
Maybe you have minutes to live but luckily your device has DCU.
Maybe you are moving to the moon and can only bring one comic/episode/movie.
Whatever the reason for this horror, you can only watch/read one comic (because I am nice, I will count volumes), episode, or movie and then NEVER be able to do anything DC again. You cannot avoid this fate. What do you choose?
If that’s the situation, then I need the maximum value for that one piece of media. A video game is the logical choice, since they take up more time per unit than anything else. Batman: Arkham City would have to be it, then.
@JeepersItsTheJamags wins the cheat-the -system contest! (For the record, I did say I allowed volumes and collections are pretty much the same thing). Great answers one and all!