Lightweight and versatile. Huge library of extensions that enable you to integrate a host of services to your development environment. VS Code's biggest strength is its library of extensions which enables it to directly compete with every single major IDE for almost all major programming languages.
Visual Studio Code became famous over the past 3+ years I believe. The clean UI, easy to use UX and the plethora of integrations made it a very easy decision for us. Our gripe with Sublime was probably only the UX side. VSCode has not failed us till now, and still is able to support our development env without any significant effort.
Goland being paid, as well as built only for Go seemed like a significant limitation to not consider it.
Since communication with Github is not necessary, the Atom is less convenient in working with text and code. Sublim's support and understanding of projects is best for us. Notepad for us is a completely outdated solution with an unacceptable interface. We use a good theme for Sublim ayu-dark