I do not like minecraft as it focuses more on gameplay than building.
I do not know what you will use this for, but I sure know that I won't use it.
I plan on creating many many more types of blocks, and hosting the server on a dedicated hosting service (most likely Lub's)
Blockland is ultimately a game in which you create other games within
If Red_Guy's unlimited mining, or Glass's trench wars can get as popular as they do
then this is going to be very, very popular, given that it's done right
I invite you to suggest any ideas you think would make it more fun too, or focus on building more