While much still remains a mystery, we've been given a more than ample amount of information surrounding the plot for both films. While one ends a franchise, the other kicks it off. Possible spoilers ahead, so don't say I didn't warn you!
The Dark Knight Rises picks up a few years after The Dark Knight and Bane's actions seem to force Batman back into action. It's at this point we can only assume that Bane does indeed break the Bat (Wayne is seen using a walking stick in the trailer) and somehow finds a way to overcome, be it through recovering or finding an apprentice (cue Azrael or Robin!...minus the ridiculous outfit). Somewhere Catwoman is thrown in the mix and pulls an "occupy Gotham" act. Nolan has shocked us time and time again with his endings, so there's no reason to believe the franchise will conclude with all smiles and happiness.
On the other hand, Loki returns in The Avengers and appears hell-bent on kicking all kinds of ass. It looks like he's recruited an army from one of the other realms and there might even be an appearance from Thanos and the Infinity Gauntlet. Now the newly formed Avengers (backed by S.H.I.E.L.D.) aim to take down Thor's brother and whatever madness he's throwing at Earth. It's heavily inspired by Ultimates volumes 1 and 2 (Mark Millar), but so far it's looking to be heavy on popcorn entertainment while The Dark Knight Rises is striving for a deeper plot. I'd love nothing more than to see Marvel's The Avengers prove that statement wrong, but as of right now I'll favor The Dark Knight Rises.
Winner: The Dark Knight Rises
