Thats a statement, how so?
For starters, it is an actual Batman movie.
More importantly, Bruce's journey in BB matches Scarecrow as the villain since the movie dealt with the theme of fear (facing it, using it, overcoming it) and atmospheric-wise just has a lot of great set design and a dark feel.
TDK's entire style is just blah, filmed in what seemingly is Nolan's style now of clinically cold. The Two-Face climax is rushed and makes no narrative sense as Two-Face wants to prove to Batman that Gotham is lost three minutes after the people of Gotham showed on the ferries that they would not give in to the madness.
Add ridiculous stuff like building the movie around Batman's rule not to kill, only to have it end with him pushing Two-Face to his death while the movie acts like that's not murder and thematically their shyt just wasn't in order at all.
It's also the movie that introduced Nolan's plot gap where he will conveniently leave hard-to-explain or barely sensible plot developments off-screen so that you as the audience have to fill them in yourselves.
For all its ambition it has always been a widely flawed picture but people just eat it up for what its intended nature. Almost reminds me of a massively overrated CBM that dropped last year too.