Ok, most of you have poor judgement if you can't see that
Memento is one of the best movies of all time.
So perhaps I should explain my inarguable ratings! First, I should say that IMO, no Nolan movie is a
bad Nolan movie. Nolan is one of a very few directors that, at a minimum, has something interesting in all of their movies; Scorsese, the Andersons (Wes and P.T.), Tarantino, Coen Brothers, Fincher ... so many more. It doesn't mean that everyone finds all of their movies equally interesting; some people can't stand Tarantino (too pop, too violent) just as some can't stand West Anderson (too twee, too mannered), but they all have something interesting to say.
Yes, there are certain things that you often find in most Nolan movies- a Hans Zimmer score. Michael Caine. Tom Hardy. The plot unfolding in a strange manner (often with some element of a "puzzle," that usually involves time in some fashion). A meta-element, wherein the film elements (including the score) and the plot itself in someway reflect each other.
But the movies themselves are usually quite different visually and thematically; it's not like he's Wes Anderson with an easily parodied style. Dunkirk is not Interstellar is not Inception is not The Prestige is not Memento; while each of them use "Nolan-y" techniques, they are, quite clearly, a WW2 Film; a post-apocalyptic meditation on love, loss, and sacrifice; a mind-bending thriller; a period piece about truth, deception, and art; and a B&W 'art' film that is a shocking 'M. Night' twist-y puzzlebox.
So- the list!
1. The Prestige
I don't know how any movie could be better. It is, IMO, the height of Nolan- and allow me to explain. Nolan has made films that are more technically proficient. He has made films that are mentally taxing to understand. He has made more accessible films. He has had better acting in some of his films. But this film ... it has two things that no other Nolan film can match. First, it hit the sweet spot. It is the perfect blend of story, acting, technical proficiency, and twisty plot ... without any aspect overshadowing the others. In other words, it achieves a balance that none of his other films quite has between technical proficiency and emotional resonance, audience accessibility and mental gymnastics, without going too far overboard in one direction or another. Yes, it is "show-y," but not overwhelmingly so.
Second, while it works amazingly well just on the surface, this movie rewards repeated viewings. Nolan uses the artifice of the plot (about magic) to both explain the process of what the magicians are going through as well as to explain what you, the viewer, are going through. It's a magic trick that is explained to you, while you are watching it. Of course, the joy is realizing that the movie, about magic (and perfectly serviceable as such) isn't about "magic" at all, necessarily, but about film, creation, and the lies we tell to each other and to ourselves.
2. Memento
Briefly- without Memento, there is no Nolan as we know him now. Memento, in many ways, suffers from the Citizen Kane effect; if you watch Citizen Kane now, because so much of it has been aped by other directors and other films for decades, you don't even realize the profound influence it has had on film grammar. I can remember watching Memento in the theater when it came out, and being blown away ... absolutely shell-shocked. Yes, there were a lot of other inventive films coming out then (Run Lola Run was two years before, Pulp Fiction was six years before, Pi was two years prior, Barton Fink by the Coen Brothers was in 1991, etc.), but Memento was a statement film, and incredibly self-assured for his second "real" film.
3. Dunkirk
I rank this so highly for one reason- it's a great war film, and the "gimmick" doesn't overwhelm it.
...or maybe it's because I saw it in a glorious IMAX theater. That helped, too.

Seriously, though, it was a great use of his technique in service to, rather than overwhelming, the subject matter.
4. The Dark Knight
If this isn't the best "superhero," film, it is certainly up there. I don't really have much else to add to add. It's not just a great superhero movie, it's a great movie.
5. Inception
This movie may be the one that has lost esteem because it's so overdone, but show it to someone who has never seen it before and it is magic. Again, there is true emotion in this film, great acting, and amazing action .
6. Tenet
I may have to see this again. I saw this in the theater during COVID- I had a "pod" rent out a theater before it was shut down. It was really good. This is one of those movies that is almost Kubrick-ian; you can appreciate the coldness, and even understand the choices that led to it, but you don't necessarily love it.
That's how I feel about this movie; I admire it, but I don't love it. I enjoyed it, but I also haven't thought that much about it ... unlike the first five movies.
7. Following
His first film. You can see the elements of "Nolan" there already- but the lack of budget, "lesser" actors, and short run-time make it more of a curiosity than an absolute "must-see."
8. Insomnia
Pacino. Robin Williams. Hillary Swank. Nolan directs a Hollywood thriller. This is the least Nolan-y of Nolan's films. But it is also both quite good on its own, and also provides evidence that Nolan is fully able to do a "normal movie."
9. Interstellar
This might be the second-most contentious of my rankings. Some people love this movie. It's ... fine. For me, it never cohered. It is achingly beautiful, agonizingly melodic, and an amazing achievement that (for me) never rose above a stilted homage to the crib notes to 2001. At all times, it feels like Nolan is much more interested in the visuals than the ideas in this movie, and for that reason, I just felt that the movie itself was similar to a late-night pot-smoking binge in college; a lot of seeming profundity that disappears when the lights come up.
All that said, I wouldn't argue with people that rate it more highly. They'd be wrong, because I am right, but I wouldn't argue with them.
10. Dark Knight Rises
11 Batman Begins
Good movies. Great superhero movies (like being the tallest leprechaun). But Batman Begins did not resurrect the superhero movie (if anything did, that was Raimi's Spiderman in 2002). Dark Knight Rises was full of some interesting ideas, and some worldbuilding that never paid off (Joseph Gordon-Levitt???). But while the Dark Knight is, arguably, a truly great movie
qua movie, these are just good movies, and great superhero movies. They are more akin to Insomnia than to the remainder of his oeuvre.