I started a new world at the end of December, and finally being up to date with content features is welcomed (World 1 was from December 2013 - before even potatoes/carrots - and World 2 was created just after the addition of roofed forests).
I've been playing on this world pretty consistently for about two weeks now, and have a little settlement built in the center of the map.
I use the farm as the "center," noting everything to the left of it (from this point of view) as the "North Side," and everything to the right the "South Side."
On the north side, there isn't much to talk about. I've a railroad track leading from my base to a small dock. It's arguably so little distance between it and the base that minecart tracks weren't necessary, but I'm lazy and those little treks add up over time. The dock features two slots for parking boats.
Next to the dock is a village that is no longer populated. Upon moving to this area, the village was not my priority, but I still wanted to keep its residents alive. I waited until night time, let them go in to their houses, ensured that the doors were closed, and blocked off the doors with cobblestone blocks. Apparently, I don't have a solid grasp on villager mechanics - even being sealed away with cobblestone, they died. Wouldn't be the first time (this happened to me in the previous post/world also). I'm not too devastated, there's another village not too far, but I have the ugly remnants to look at for now.
The south side is where most of the business happens. My base consists of the single-story work room (crafting bench, furnaces) in the front, connected to a two-story storage area/bedroom behind it. The small cobblestone building to the left of it is the staircase that leads down to my mine: a room located at ~Y10 connected to a strip mine as well as the passage to the stronghold. Directly behind the Nether portal and atop the hill is the AFK fish farm, behind the house are two iterations of a cobblestone generator as well as a pen in which I plan to collect one of every ride-able mob in the game. On the far right side of the image you'll notice a sugarcane farm, and, in the very back-center, a small cacti farm.
Here's a view from the other side of the base. The single door on the right leads to a small, fenced-in area where I'll keep my wolves (need them for an achievement, anyway...). The minecart track on my crosshair leads in to a cave, and down to a skeleton dungeon. I've modified the dungeon extensively, creating a 7x7 (I believe) quarry that drops ~25 blocks directly beneath the spawner. The goal here was this: I could sit at the bottom of the quarry and simply collect the drops/whatever from the skeletons as they fell to their deaths. I'm not having much luck getting many skeletons to spawn, though, so I probably need to take a look at some tutorials. I probably should have looked at many tutorials - village(r) mechanics, XP grinders, cobblestone generators, etc - to save myself many failed attempts, but I just find it satisfying to figure out things on my own. ¯\_(ツ)_/¯
Finally, here's an image of the full map. I'm located exactly where the crosshair is. I appreciate that there is a desert to the south, and wintery plains to the north, as I've not had much luck getting both on a single world before. In the top left, you'll notice the brown smudge - that's a woodland mansion. A very interesting one, at that. It generated in such a way that it's basically cut in half, leaving many rooms/chambers exposed to the outside, and, consequently, Evokers and Vindicators roaming the surrounding forest/plains, though they don't stray too far from the mansion. I'll be sure to have pictures of it when I decide to go there, as I don't think too many of us have come across this...or maybe bisected woodland mansions are more common than I'm thinking.
Currently, I'm in the process of cleaning out a pretty large ravine complex (three intersecting ravines near bedrock level). After that, I plan on either taking on the woodland mansion, or expanding my little settlement some more.