Okay, that's great. Now about Blocky Survival ...
Blocky Survival is, in fact, quite different then the servers described above. While it does have some things in common, such as a protection mod and animals, it is quite unique. It uses a somewhat modified version of the little-known modpack called "TechPack" in conjunction with another little-known mod with the name "terumet" instead of the aforementioned pipeworks / mesecons / technic combo. While this isn't as feature-rich, it allows basic to advanced automation with nearly zero lag!
The server's mapgen is the weird but fascinating "valleys", which produces everything from grassy slopes crisscrossed by rivers to mountain ranges towering far above the clouds. Spawn is located in a giant cave some 40 nodes below the surface, and beautifully lit by mese lamps.
It has no monsters except for in the nether, where an army of them guards the mysterious "Nether Heart Ore", which, after being processed, is capable of reviving a player.
How busy is it?
At this moment, there are 5 players on it, and there has never been more then 20. The average, according to the server list, is around 6. The server is newly founded, so join quick and grab area around spawn while you still can!
Who's in charge?
The server admin is myself, BillyS.
My faithful co-admins are luk3yx, xerox123, and A_Hamilton (aka Mr_Pardison)
There is currently only one moderator: Ruslan1
Blocky Survival is hosted by DI3HARD
Sounds great. Got any pictures?
Here is a picture above spawn. Spawn is located directly below the small building with the tan walls in the top right of the photo.

Here is a picture of a small village started by players.

Here are a couple pictures of the inside of spawn.


Here is a picture of the nether.

And here, finally, is a picture of me getting slaughtered by monsters after trying to steal a Nether Heart Ore.

What mods exactly does it have?
The full list of mods (as well as their code) can be found at https://github.com/Billy-S/blockysurvival
I'm sold. How do I join?
The server URL is mt.packets4hire.com on port 30005
I hope to see you there!