Honestly I like most of them. they're all pretty good. that being said wasn't a fan of xbps. found it slow. Nix is great too. it's just so damn easy. especially if you use comma. I also like DNF. pacman's pretty good too especially when you add "ILoveCandy" to the conf. Portage is great too.

But honestly out of all of them, and this isn't linux, but FreeBSD's is my favourite.