Some of what I noticed:
first image (zoomed out only):
The clouds are much more amorphous with DLSS in the first comparison (in comparison with TXAA). The DLSS image has reduced contrast, overall, although there are some places that have increased contrast -- like the roof of the central tower (due to a reduction in highlight intensity). The result is a more hazy/cloudy/overcast look to the scene than with TXAA. The water is much stiller in the DLSS image. In the TXAA image, as with the clouds, there is a lot more in terms of blue patching. Shadows are narrower with DLSS and less intense, although the large shadow on the far right has a harder edge with DLSS. By contrast, the left side of the image, the pole shadow, is more muted than with TXAA. Many highlights are less intense with DLSS, such as with the front of the central tower, the bricks, and the large vine. The image takes on a bluer tint with DLSS. Compare, for instance, the neutral grey in the central three buttresses (or whatever those stone things with ornate patterning are called). Perhaps the worst spot in the image, when comparing the two, is the central vine, which looks much better with TXAA, thanks to more subtle brightness gradation. The increased water contrast in the TXAA also makes the railing look better by having it blend more into the scene. The same goes for the other metal poles. They blend more harmoniously into the scene with TXAA, especially the one on the far left.
second image:
As with the first comparison, the clouds are much more amorphous. The water, though, is worse with FXAA than with TAA. Shadows look inferior with FXAA vs. TAA. The central vine looks a little more lifelike with TAA vs. FXAA. FXAA also lacks the blue tint/overcast look of DLSS. The overall effect of FXAA is in between DLSS (flattest) and TAA (most vivid/contrasty), although FXAA seems to lighten things more overall, especially the center of the roof.
third image:
NoAA looks okay to me, except for the water -- which, like FXAA, is mostly flat all-blue. The other drawback is that the most obvious shadows don't blend well. They look more artificially tacked on. The railing lacks nuance... too dark. I have just compared the top pole, which has the roof ties and I like the TAA the most. With NoAA it seems to have too much contrast. FXAA helps some with that but TAA helps more. Without analysis, though, just a look, the lack of AA doesn't seem to be a big problem. The central vine, in fact, probably looks the best with no AA. TAA also brings out detail in the large window on the bottom left. DLSS brings out the most highlighting of that window's inner border but TAA has more contrast detail (less flat inner seam/border).
fourth image:
The large shadow on the right is pretty ragged with 1440. The prominent shadows don't blend well. Water detail is minimal, better with the DLSS. DLSS, though, reduces the contrast too much of the center of the image (although it improves the railing).
sixth image:
The waterfall looks better with TAA because of more highlight detail. The clouds have a little more detail with TAA. The fine misting where the waterfall hits the water seems to be a bit more subtle around the edges with DLSS, although there seems to be less detail in that whole area. The right side of the table has jagged edges that neither AA system gets rid of, although DLSS does a little bit better with it. The flowers seem to have tiny bit more contrast with TAA. The shadows under the flower box look a bit better with TAA. The brown boxes, interestingly, have more highlight brightening with DLSS. The placid water area blurring of reflections is better with TAA, more natural because there is more blur. The top of the handrail may be a little better with DLSS.
last image:
The blur of the water at the bottom left is more natural with TAA. The potted tree at the bottom right looks more natural with TAA, less flat/painted on. The tree at the top right looks better with TAA for the same reason. The shadows on the central stairs are better with TAA. The far railing on those stairs blends better with the water with TAA. It's easier to see the railing detail in the furthest away staircase with TAA, due to better contrast. The large central staircase has better highlighting with TAA. The yellow overhang and its support looks better with TAA. With DLSS, its support looks harsh, less natural, (overly-sharpened, poorly-blended highlights). The shadow under the staircase at the bottom center looks nice with DLSS, although not bad with TAA. The water around it looks better with TAA. The pillar to the left of the potted tree looks better with TAA.
Overall, I would say that TXAA and TAA are better than the other options, based on those shots.
4K MAX Settings DLSS
View attachment 112480
no complaints from me
Lots of over-sharpening. The car is the most obvious but it's all over the image. It's definitely not doing enough as an anti-aliasing mechanism in that image.
The low polygon models problem, that could be seen with that table in the TPU image, is even more dramatic in the bottom left of your image, too. At least, that's what it looks like to me, since the jaggies are so massive. They're so large that AA probably can't be expected to take care of those. Regardless, though, anyone who has done much with Photoshop knows what going overboard with sharpening looks like and the car in particular has that problem. The entire image, for the most part, seems excessively crisp.