Both the modern free software movement and the Open Source Initiative were born from a common history of Unix, Internet free software, and the hacker culture, but their basic goals and philosophy differ, the free software movement being more focused on the ethics of software, and their open source counterparts being more focused on practical benefits. The Open Source Initiative chose the term "open source," in founding member Michael Tiemann's words, to "dump the moralizing and confrontational attitude that had been associated with 'free software'" and instead promote open source ideas on "pragmatic, business-case grounds."
Which is better the Free Software Movement or the Open Source Initiative?
The Free Software Movement is the better organization for me since I also hold a high value on ethics and believe in that vision.