I am suse user for 20+ years with a big break in between. To me it fits the best. Ubuntu I gave up on a while ago and came back to find things so much nicer.

They have a slightly different take on immutable than redhat but it also works well (rollback and all). Also the tumbleweed rolling is quite stable for a bleeding edge rolling release distro. Using it on a few boxes for the last few years and also installing it for other PC noobs and they seem fine with it.