Manjaro

I will only include this one as a warning:

Do NOT use it!

Although it might look nice and easy to use at first, its various scripts for maintaining the system are bug-ridden, filled with textbook examples of what not to do with pacman and with Arch in general (partial upgrades, forced downgrades of system-critical packages, fake improvements of stability, etc…)1. Also, the association taking care of Manjaro is shady2. Oh, and they don’t know how to properly maintain their forum3.

2

Leadership controversy: a Reddit thread and a HackerNews thread

3

See this and this Reddit threads