Let's look at the core of the jokes then:
1) Hanging upside down from a gargoyle is awesome!
2) No matter how stealthy you are, Batman is stealthier.
How are these the same joke?
Both jokes are visual humor predicated on batman hanging upside down. The similarity is as obvious as, well, batman hanging upside down. You're just being obtuse.[/QUOTE]
I don't think he is, and frankly I think they're both good gags, although in this instance the PvP one was funnier. While they're both predicated on Batman hanging upside down, they still did two totally different jokes based on that. Saying it's the same joke is like saying that there's really only one knock knock joke, because really they're all based around the same premise.