Minecraft how to Gen Walls?

Minecraft: How To Build A Medieval Watch Tower (Tutorial)

But it's very simple actually and all you have to do to start with is place down your lava blocks. And you have to wait for them to drain out so they're free wide.

Which is the Best Wall in Minecraft?

Dark Wood Indoor Wall. You cant get a design as compact as this! ...
Dark Wood Minecraft Wall.
Rapunzels Mossy Minecraft Wall.
Quartz Minecraft Wall Design.
Stone Brick and Dark Oak.
Sandstone Helmet Minecraft Wall.
Tall Creeper Stone Brick Wall.
Stone Brick and Iron Fence.