GNU Emacs is the most popular and most ported Emacs text editor. Developed by The Free Software Foundation
License: Open Source
GNU Emacs is a highly customizable text editor favored for its extensive features and powerful scripting capabilities, while Sublime Text is known for its speed and modern interface, making it a preferred choice for users looking for immediate productivity. The choice between the two ultimately depends on the user's need for customization versus ease of use.