Atom is very good and has best plugins so far, but it’s like to crash often. Vs Code doesn’t have that good plugins, but it’s smooth and light. I tested also IntelliJ 14 with plugin and it’s very dissapointing. Maybe 2016 version will be better, I’ll test that tomorrow. After all the best IDE so far is Atom.
I’ve picked pure emacs, since it is the one I do prefer for erlang and elixir coding, but I do use IntelliJ and Atom for many other languages as well. I’m not very happy with Atoms crashes I do encounter more and more every day, but it is part of our toolchain at my office and some of our CI/review processes are automated in there via plugins my boss wrote.
For emacs I do use the config you can find on GitHub. It is a work in progress though, and I am progressing only slowly, since it is aimed to be portable between the systems I do use.
Except from the raw sources of the configuration I do also provide some PDF and HTML of the config. Which I do not update after every change, but only occasionally.
Interesting to see so many folks using Spacemacs! I’m really interested in learning it, but I’m finding it hard to find good learning resources. I keep finding vim and regular emacs stuff, which is helpful, but not quite enough to get me over the hump.