When comparing RebornOS vs solydK, the Slant community recommends RebornOS for most people. In the question“What are the best Linux distributions for KDE Plasma 5?” RebornOS is ranked 22nd while solydK is ranked 34th.
Ranked in these QuestionsQuestion Ranking
Pro Antergos with more desktops
Pro Good Repo
Reborn's dedicated repo has some extra packages that are difficult to find elsewhere, in addition to the official Arch repos, community repos, and the AUR.
Pro Highly and Easily Configurable
You can easily choose from a list of browsers, desktops, office suites, etc, all from the installer.
As the name would suggest, SolydXK is rock solid Debian.
Crashes every time when trying to install.
Doesn't even install it in virtualbox or VMWare.
Con Installer doesn't recognise partition table SOMETIMES
On a couple of occasions the installer has told me one of my disks is missing a partition table but it definitely has one and other distros haven't presented this warning.
Con Default theming not to everyone's tastes
The default icon theme in particular is IMHO pretty ugly. Easily changed but if you like to just plug & play without changing themes it may not suit you.