S Tier: Star Wars (A New Hope), The Empire Strikes Back, Return of the Jedi
A Tier: Rogue One
B Tier: Mandalorian*, Attack of the Clones, Revenge of the Sith
C Tier: The Phantom Menace, Clone Wars, Star Wars Rebels, Solo
D Tier: Droids Cartoon, The Book of Boba Fett
F Tier: Star Wars Holiday Special, Ewoks Cartoon, Ewoks: Battle for Endor, The Force Awakens, The Last Jedi
(*Individual episodes of Mandalorian vary from S Tier all the way down to D- Tier, I'm giving here an average level of quality for the show thus far.)
I have not seen Rise of Skywalker, The Bad Batch, or Obi Wan at this point. I may decide to risk Obi Wan, but I've found myself sitting through Star Wars Holiday Special levels of stupidity so much in Disney Star Wars that I feel like it's torture to watch the garbage they spew out most of the time. And yes, I actually went back and re-watched the Star Wars Holiday Special just to see if I was being unfair with the comparison, and at this point I can't decide which was objectively worse, STHS or the second act of TFA, or the entirety of TLJ. Let's not blame Rian Johnson too much. He was told to make a sequel to an absurd movie that introduced a ton of ideas with no real ideas where it was going with them and no overall plan to the story with a creative team that seemed to objectively believe the original Star Wars was a bad movie that was saved in the edit so they could do that to.
Disney Stars wars hasn't been uniformly terrible. It's just that the showcase movies are so much inferior to the original trilogy in every respect, or inferior to even the sequel trilogy in terms of conception and creativity and ground breaking effects, that a few good episodes of The Mandalorian or Clone Wars and 95% of the movie Rogue One can't really make up the difference. Disney's handling of the property would be something other than risible if it was only minor properties that were as bad or worse than the Ewok made for TV movies and not the showcase sequel trilogy that was supposed to anchor the franchise and set the stage for future generations of fans. I can forgive them for The Mandalorian's very uneven writing, but not for the character assassination of Han and Leia in TFA followed by the character assassination of Luke in TLJ. The unmaking of the original trilogy by the sequels means that IMO, the world would be better off if those movies had never been made. The constitute a crime against the arts. And the absolutely hideous treatment of the property stands in stark contrast to the very respectful and overall masterful treatment of the Marvel IP.
So yes, on the whole, it really is that bad. This is the dark years of Star Wars fandom. This is worse than those years where we were waiting for a 4th movie. At least then we uber nerds had the wonderful job WEG was doing with the RPG, and some decent pulpy takes like the original Han Solo trilogy.