When comparing Parabola GNU/Linux-libre vs SparkyLinux, the Slant community recommends Parabola GNU/Linux-libre for most people. In the question“What are the best Linux distributions for desktops?” Parabola GNU/Linux-libre is ranked 15th while SparkyLinux is ranked 67th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Protects your freedom, certified free by the FSF
Pro Option to use OpenRC or Systemd
Parabola has an OpenRC edition and a Systemd edition, so users can choose which init system they want.
Pro All the benefits of Arch Linux, only 100% certified free software
Pro Very Secure
Pro Has its own repos
Parabola has its own repos (which are almost as large as Arch Linux) and the IceCat browser is included.
Pro Can be migrated from Arch Linux without a CD/USB
Pro Based on Arch Linux
Pro Based on Debian
You have access to a large user repository, Ubuntu guides can mostly be applied since both are based on Debian.
Pro Rolling or Stable Choice
You have the option for Sparky to be based on Stable or Non-Stable, bringing greater flexibility to user priorities.
Pro Lightweight core
Sparky is designed to be lightweight in it's core. It is based on Debian but optimised for old hardware, meaning you can run a full heavy desktop environment on a lightweight foundation, bringing greater performance compared to similar Debian or Ubuntu-based distros.
Pro All vanilla desktop environments available
Any Linux desktop in it's vanilla form can be installed on top of Sparky, whether that be alongside a pre-existing environment, or on top of a basic command line system. Furthermore, the command line system is easy to operate due to Sparky's advanced installer utility, from which you can choose whichever desktop environment you desire, straight from the Debian repositories. Guidance is on their website.
Pro Rolling Release
Cons
Con Won't work out-of-the-box on the most PC's
Almost all PCs need non-free drivers but Parabola has none to offer.
Con Not compatible with AUR
Unlike other Arch-based distros, this free distro doesn't support AUR.
Con Same cons that apply to Arch Linux
Con Small repositories
Since Parabola is a completely free distro, there is no non-free software available and the community repositories are small compared to the AUR.
Con Incompetent developers
They only care about removing "non-free" software, rather than making a properly working OS.
Con Serves no purpose
It's just Arch without non-free software and is basically a niche OS with few users.
Con Not really free
People have to pay hundreds to maintain this distro.