Well for the sake of context Mineclonia is a fork of Mineclone2, which has now rebranded itself as VoxeLibre. The project was forked due to personal and design disputes. In fact the most productive developer of Mineclonia, used to be the lead dev of mcl2.

Currently VoxeLibre maintains the continuity of the original project and the community which explains its higher popularity. Mineclonia by comparison has very little presence, the discord server was set up like a couple of months ago I think.

But in terms of code, mineclonia has been the faster evolving of the two. More features, more bug fixes, and advances from voxelibre that are deemed valuable are cherry picked. In terms of specific features, I really prefer the double digging depth, and the better villages. And voxelibre has significantly shortened the attack range which I find really annoying.

Other than that, mineclonia is more commited to being a true clone of minecraft, with voxelibre going out of its way to diverge, especially after the rebrand, which might turn out to be wise if microsoft’s trademark lawyers come knocking.