Then what is? No, really, name another superhero trilogy that was as good as Nolan's was. Even if you thought TDK was hyped up and TDKR wasn't even as good as either of the previous ones, you must admit it has surpassed all other superhero trilogies. Spider-Man, Blade, X-Men... Those movies have HORRIBLE third parts in their respective trilogy. Those franchises are lucky to even had a third movie made possible by not having sucky sequels or being a sucky original film. Fantastic Four, Ghost Rider, Spawn, Daredevil, Punisher, etc. The lists can go on forever.
Nolan's Batman, whether or not you loved or simply liked TDKR, is indeed the best superhero trilogy of all time. Is it the greatest trilogy of all time? That's not what's being said by anyone here. Except for Void. But is that a surprise?
I would have to agree that Nolan's Batman Trilogy is one of my favorites ever. It ranks up there with the original Star Wars trilogy, the Jason Bourne Trilogy, The Lord of the Rings Trilogy, and the Toy Story Trilogy.