I feel that Atom is the best editor right now because it is completely free and integrates well with GitHub.
Co-founder & CEO - Tenantify
1%Stacklist Startups Are Using Atom
Atom is a text editor that's modern, approachable, yet hackable to the core—a tool you can customize to do anything but also use productively without ever touching a config file.
Visit the website: https://atom.io/