My thoughts, in order of visiting:
Location 4:
It's alright, some nice flat plains land
Location 5:
Wow that's a big village. Personally don't like setting up
too near them since that's how you decimate their population. Nice mix of the plains and the classic forest/spruce
Honestly the Savanna M (or Shattered Savanna, as it's now called) near locations 4/5 might interest me more than these two locations, lol. like
woah that desert mountain cliff waterfall is cool
Location 6 (Ruguo's suggestion):
Nice location to build a flower farm
I like the way the river bends
Location 3:
It would be nice/interesting to build/terraform around the mountains. Nice valleys, nice plains nestled within them. A number of locations in this area would be interesting, definitely like this area. The valley slightly northeast of the coords (near the Lamplighter Challenge tower, which is on the other side of some mountains) is also quite nice. I quite like this area.
Location 2:
Also alright flat plains land, a few neat coves
Location 1:
Again alright flat plains land, a nice mountain backdrop
Some more things that I found while I was searching for distant end portals near my base, yesterday:
Location 7: -2206 7431
Glacier facing a coastal 1.14 plains village. Nearby biomes include swamp, a small forest hills, and a flower forest, as well as a pillager outpost (so be careful not to trigger a raid lol).
Location 8: -2130 8348
Basically, straight south of the small glacier in Location 7 is a
huge glacier. If we're serious about building in a glacier this would totally be it
Location 9: -3427 7034
Another Glacier facing a coast 1.14 plains village, which is surrounded by a savanna and a desert. Some turtles nearby
Location 9a:
Nice flat coastal plains area, also facing glacier, east of Location 9, in between locations 7 and 9. Potentially a very good location after in-game discussion with BSR and Colberius.
Location 9b:
Northern-facing coastal plains area west of Location 8.
Location 10: -3707 7505
Coastal abandoned savanna village, also facing a small glacier.
Location 11: -4747 6646
Another nice flat plains area with a neat river and a 1.14 village, some wooded hills and desert nearby (as well as an end portal actually quite nearby lol).