Is it really so hard to believe that something worthwhile could exist in Sword Art Online, even if the series as a whole is a pretty big dud? There are talented people working on the action scenes and I feel like it's actually exceeded every other show airing this season when it comes to that, even if that isn't really the focus.
And yeah, the story is really heavy handed and we are in an arc about, but at least there's some kind of emotional push here that's missing from all the other fantasy garbage ranging from Bahamut and Fate to Chaika and Log Horizon. SAO2 is significantly less convoluted than all of those shows in its world building and storytelling, with very deliberate arcs showcasing character's changing over time, and this all happens at a reasonable pace. SAO 2 is pretty boring a lot of the time, but it's honestly somehow less of a mess than its contemporaries. The snide whining about its success feels pretty hollow in the context of everything else people are watching this season.a terminal kids with AIDS
Disclaimer: I stopped watching SAO2 and the end of the Bullet arc.
While the consistent production values are good, I can't think of an action scene that 'exceeded every other show' or even was any good in the first place. Well animated, sure, but nothing interesting unless you're wowed by Kirito's constant sword-dancing.
I'm not really sure what you mean about 'emotional push' either. I felt nothing for Kirito or Sinon at any point, especially after 8 flashbacks to the murder guild scene. You need to make me care about a character before you throw their tragic backstory at me. It was especially bad in Sinon's case. Log Horizon does a wonderful job of making me care about Shiroe and what he does. Of course, it also fails (Akatsuki) but at least it manages to have at least one strong character which puts it at advantage over SAO. Log Horizon's side characters also manage to actually have personality, rather than the cardboard cast of SAO.
I've only watched Log Horizon out of the four you mentioned, but in SAO's case "not convoluted" is definitely not a plus. The world building is possibly the only highlight but it feels shallow and pales in comparison to something like Log Horizon. The rest is plain boring. SAO1 Arc 2 was better than this.