We need more people to champion Visual Studio Code
https://code.visualstudio.com/
I already consider Visual Studio to be the 2nd best IDE out there (a very close 2nd to XCode), all the skills and talent of the VS team went into Code and it really shows it.
You can add the JS directory to the side, giving you quick access to the Plugins, libs and Standard JS of an MV project and the ability to search through the entire MV code-base there in the IDE.
I only wish there was a way to attach debugging with MV.
My biggest complaint with VS Code is that the tabbing system only lets you have 3 files open at a time in a cramped window, so you're forced to open more windows, which won't default to the folder you're looking at, so you have to then open that folder for the new window. A tab interface similar to Visual Studio would be much, much better.
Atom would be another very, very good choice (which is what I'm likely to switch to from VSCode, VSCode is like a simpler version of Atom to me).
Reasons to use VSCode over Atom are; better Git integration (in my opinon, here) and a lighter, faster IDE (Atom seems to be pretty sluggish in comparison - my PC is very fast so it's negligible but I can imagine Atom being a pain for those on bad machines).
Multi-line comments are also handled much better in VSCode. Atom you need to keep adding the asterisk, but VSCode does that for you, so editing the comment at the top of your Plugin is nice in VSCode - however Docblockr for Atom fixes this.
You also need a plugin to enable Open Recent files in Atom, whereas that's a default thing in VSCode. Atom is also missing find-direction, which VSCode has, so searching through an MV file in Atom is a bit more painful than in VSCode.
Scroll sensitivity is really low in Atom as well. I had to set mine up to 60 in the settings.
TLDR; Visual Studio Code is like a simpler version of Atom that doesn't need as much configuring.