OK, I'm just wondering which one is handles Minecraft: Java edition the best for doing some simple block-copying of structures from one world to another.
It is kind of confusing since the wiki page on editors is woefully out of date and doesn't even mention MCEdit 2,
My goal: We are currently merging several of our worlds into a new one. So I'll be copying structures and creations from several worlds into another. Most of the worlds are 1.8/1.9/1.10 vintage. Not terribly complex. (no mega redstone machines or anything like that). Some very impressive structures, though.
I am running the latest 1.12.2
Here's what I can tell from the websites:
MCEdit 1: Stopped development years ago. I can't even find a download link for it.
MCEdit 2: Appears to be still in beta development. Last updated in July 2017, no info on where it is right now.
MCEdit-unified: Most recent update is in January 2017, mentioning updates for MC v1.11.2.
So based on that, I'm inclined to go with unified, but it is rather hard to tell what's going on or which one would be the most uptodate.
Just for the record and anyone else looking for an answer on the same subject: I successfully used MCEdit-unified to port in the structures and town from the old server into the new one. It did it reasonably well, although some of our larger structures needed to be broken into multiple pieces because MCEdit froze when handling things that were too big.
I can't tell if there is a way to give MCEdit more RAM or not, or even if it is a 64bit application or not. I'd be happy to give it 4 or 5 Gb of RAM. (that's about what my MC client gets allocated)