Nice article. I’m glad you put Manjaro at the bottom of the list; I’ve tried it multiple times; it didn’t make it even a day the most recent time; I noticed they produced another image quickly, so maybe they fixed their problems.
Regarding Gentoo Linux, unless there is a fully prepared image available, I’ve found it too cumbersome to build with not enough payback to make it worthwhile; since I know how to build code, that’s not a motivation for spending a ridiculous amount of time putting it together.
I’ve enjoyed PCLinuxOS for many years; it’s one of my favorite rolling release distros. I’ve not done much with Void, but I’ve read positive things about it.
I completely agree with you that openSUSE Tumbleweed is the most stable, consistent rolling release. I’ve never once had a problem with it.