All due respect your team has yet to provide a substantial argument in favor of the film's quality.
What is your definition of a substantial argument? Because you've rejected hardcore statistics and praises from reputable sources, and according to you anything we say is just fanboy opinion.
Would me showing you a quote from a Hollywood giant like Steven Spielberg calling TDK a beautiful art film sway you? Because he did actually say that.
Without mentioning box office, without mentioning how popular the Joker was, without mentioning other people's opinions... explain to me how The Dark Knight is:
A) One of the best movies ever made.
B) Far beyond the rest of the superhero genre.
Preferably a few paragraphs, not a novel. Let's keep this simple.
Ok lets keep it simple for you. Start with the depth the movie has;
This movie is about exploring the consequences of Batman's presence on Gotham. That is why it was not meant to explore the Joker’s backstory because it’s really not that important to the film. Simply put, the Joker represents anarchy and chaos, a constant and near-unstoppable force whose origins are inexplicable (something which is made clear rather explicitly when the Joker delivers two creepily different monologues as to his scars’ origins). Many people compare Joker to other film and comic book villains but the one that I think he can be most closely associated with is Anton Chigurh from
No Country for Old Men, who is a force of nature. His origins are unclear but his actions are strongly felt by those around him (to put it mildly).
The Joker is unpredictable and can’t be reasoned with, nor does he have any broader goals except to create chaos and destruction. The Joker upends the genre conventions of a villain in that he has no inhibitions and refuses to hew even to the ultra-basic moral code of criminals (see: the opening scene). When a character has no values that you as a viewer can relate to and hold on to, the results are extremely disorienting.
All of this comes to a head in the hospital scene, when Joker gives Harvey Dent the “It’s all part of the plan” monologue, a speech that’s chilling not just for its content and delivery, but also because of its incisive commentary for Americans.
The final monologue that Commissioner Gordon brings the themes from Batman Begins to their logical conclusion: Namely, that as a man, Bruce Wayne’s powers to evil crime are rather limited. As a man, he can be corrupted, he can be killed, and ultimately, he can be defeated. As a symbol he can become far more, and at the end of The Dark Knight, he becomes, to society, an uncontainable force in very much the same way the Joker was. He becomes hunted, making people believe that he cannot be controlled, that he has lost all respect for societal norms and the rule of law. As Gordon realizes he needs to blame the murders on Batman, he acknowledges not only the need for society to push their fears onto something, but their hopes as well (which he allows them to do by preserving Dent’s good name).
In order to keep from tearing itself to shreds, society needs to believe in the incorruptibility of good and the relative remoteness of evil. The Dark Knight points us to ways in which we cope with this need.
Simultaneously, it’s also made clear that, in fact, Batman never succumbs to his own dark, inner urges. In the movie, Bruce Wayne says the line, “I’ve seen what I have to become to fight men like him,” and he rejects the path he has to take to stop Joker, a man who has no rules whatsoever. In one of the more memorable scenes from the film, the two have a showdown in Gotham’s city streets, the Joker manically screaming “Hit me!” as Batman is propelled towards him in the bat pod. As much as Batman wants to annihilate the Joker, he knows he can’t violate his own moral code, and almost sacrifices himself to prevent this from happening (albeit as part of a broader ruse to capture him). Still, Batman doesn’t seek to kill evildoers, but to bring them to justice. The dichotomy that the film sets up between Joker and Batman is one of chaos vs. order. The dichotomy between Joker and Dent is one of good vs. evil.
At its best, The Dark Knight holds a mirror up to us as viewers and asks us to look closely, to examine ourselves as humans and as citizens. It doesn’t always do this gracefully, but it tries far more than any comic book movie in recent memory has ever done. The fact that it succeeds most of the time is a testament to Nolan’s script and artistry.
That's just the depth of the movie's story and themes. I haven't touched on the masterful acting from Ledger, Bale, Oldman, and Eckhart. Or the beautiful cinematography. Or the deep emotional weight of the movie.
Now if you want to purely put on your fanboy spectacles, and see why it's the best Batman movie, I'll keep it simple and ask you to read this. Don't worry it's in nice numbered paragraphs, and sums up my thoughts well;
http://www.cbr.com/the-dark-knight-15-reasons-its-the-best-batman-movie-ever/