My vote goes for Atom as well! I have been a longtime Sublime Text fan, and my favorite part is how quickly it launches as well.

I started using Atom only recently and I am primarily sold on how it offers a Git and GitHub extension. Instead of having to use GitHub desktop or the CLI to push commits, I can do this right from the Atom editor.

I hear Sublime Text launched SublimeMerge, but I haven’t had a chance to explore that yet.