This page is for Tim...Who can't stand MineCraft :)
If you don't know what minecraft is, google it. There are millions of people writing, youtubing, etc on it. So since I feel left out, here is my 2 cents worth.
First of all, I seem to like my torches/lights every 3 blocks. So I try to make all my room dimensions multiples of 3. Dunno why, just do.
Secondly, I have decided that making a room 5 blocks high is the most useful, 1 for the floor (usually slabs), 3 high room, and 1 for the ceiling.
Third, I find for decorative purposes 2 thick walls are the best. Then my decor in each room can be unique.
Now then, here are the guidelines I build by:
Main Hall
Make it big, 8 high, 12 wide, and 18 long. Or bigger, I mean it's supposed to be impressive right. Balconies along both sides, bay windows, massive fireplace, grand staircase, etc.
Crafting Room
Put your table at the center, put as many chests as you can around the outer edge of the room (3 away from your table. Oh yeah, and 6 furnaces.
Brewery
To brew potions. A couple brew stands and everything I need for brewing right at hand. I also usually stick my water and lava sources in here.
Storage Room
It used to be big...Now it's efficient. etails on the system are here: Minecraft Storage Room.
Enchantment Room
With a mossy stone/obsidian floor.
Library
Lots and lots of bookshelves. It doesn't serve any purpose other than displaying your wealth. On the other hand, it makes a good place for secret rooms.
Garden
Somewhere you can toss in a couple flowers and maybe a water feature.
Water and Lava Sources
I try to fit one on every level.
Kitchen
A chest for food, tables, furnace, fridge, mini bar, etc.
Bedroom
With a double bed, paintings, bookcases, wood panelling, closet...Emergency exit route.
Fireplaces
With netherrack as fuel, it looks classy. Make a Zorro style secret entrance.
Subway Station
Who wants to walk anywhere anyways?
Obsidian Lab
It's easier than hunting through caves. I'd draw it out for you, but there are many good youtube tutorials.
Experiment Room
Really huge open room to test redstone circuits and minecart tracks. My best ever room was 48x32x12!!!
Study Room
Add some class.
Escape Routes/Secret Rooms
Because it's fun to have secrets.
Target Range
So you can actually know what 50m is.
Underground Tree Farm
A row for each tree type.
Underground Wheat Farm
Automate it!
Underground Melon/Pumpkin/Sugar Cane/Cactus Farm
Why should you ever have to see the light of day? Or go exploring for resources??
Indoor Fishing Pond
Why not? It occasional also spawns squid :)
Swimming Pool
Why should you have to swim with the fish?
Dock
Or at least nearby if your base isn't next to a body of water.
Indoor Mine Entrance
Why risk death after gathering all those pretties??
Lounge
More class.
Panic Room
And/or a vault.