We have a crazy old laptop that we used to watch movies on when I was a child. That now also runs Linux Mint really well.
I think a slim Fedora KDE would also be very fine, as Cinnamon is really quite painful to use. But they have a really nice set of user friendly minimal apps.
Nothing I would recommend to people switching from other OSes though, as its just too minimal and especially Nemo is awful. Like, no link support??