While I liked them both a lot (pumped up as hell for SR now!) Batman Begins was the better trailer. It was just.... perfection. I like how someone who didn't know much about Batman wouldn't even know it was a Batman movie until halfway in. One thing that would've made it better was if they gave no indication it was a Batman movie (no shots of the cowl or calling him "Mr. Wayne) until Crane says "He's here!" "who?" "the Batmaaaaaaan!"
I also liked the teaser, where you really wouldn't know it was a Batman movie until the final flash at the end. It's the one with the voice over "They said there was nothing out there, nothing to fear, but the night my parents died I caught a glimpse of something..."