I realize the title is very broad and relative, but I'd like to hear your opinions. As an advocate for open-software and the Free Software Movement I'd like to know what everyone thinks.
Exactly, "Freedom" is WAY to broad of a term when it comes to software. Do you mean as in the right to modify? View source code? Affiliation with Free Software/Open Source? Until then, we really can't recommend a specific distro.
Though, to be blunt, nearly all Linux distros are freedom orientated. Aside from some far out enterprise Linux distros (Oracle), you can pretty much view every source code, modify any app/OS component, etc. It's pretty hard to make a wrong choice.
Let me know if this helps,