Batman Begins is completely forgettable. I wouldn't even call it a super hero movie because it doesn't feature a "super hero" or a super villain. Bale is pretty bad as Batman to the point that it doesn't feel like a Batman film, the action is forgettable (and very poorly edited/choreographed), and the villains are boring.
TDK has plenty of cheesy dialogue but then again so do most superhero comics. It features a stellar performance from Ledger that carries the film, and even makes up for that shitty Two Face scene with Gordon.
TDKR starts shitty, recovers a bit, then nosedives in the final act culminating with Batman dragging a nuclear ticking bomb through Gotham and somehow flying it far enough away from the city's coastline to avoid any damage (in 15 seconds). Catwoman sucks and Bane is completely forgettable. There should have been a scene to demonstrate that he's an intelligent guy; perhaps he should have commented the design brand of a rich guy's suit, then explained it as "the benefits of a classical education." Boom, that alone would convince me that he was a smart guy who couldn't be fucked with.