I subscribe to the philosophy that information should be free, and that computing should be a collaborative effort, driven by community. The world is better when we all work together to improve it.
These days, I’m less gung-ho about the technical merits of free software; I just prefer using systems that feel like they’re trying to work for me rather than exploit me.
Biggest benefit to Fedora over Ubuntu would be more up-to-date packages. Debian-based distros tend to run much older versions of everything. Fedora brings you closer to upstream releases.