I recommend the xscreensaver packages. Xscreensaver includes a (heck of a) lot of screensavers.
They are the default in most distros, except for those that package gnome-screensaver (lame) or kscreensaver (also lame). Both of the latter are tailored spins of xscreensaver.
Back when I used Ubuntu, every time I did a version upgrade, Ubuntu would remove xscreensaver and install gnome-screensaver. I would then remove gnome-screensaver and install xscreensaver.
It was our little ritual.
Last edited by frankbell; 04-07-2013 at 10:22 PM.