Out of the 100s of screensavers in xscreensaver, what is your favorite?

I think mine is definitely juggle. I can sit and watch that juggler forever. I haven't looked into the code, but it must be amazingly complex to deal with all that's going on. From the random throwing pattern, to the arm movement, to the sequencing, to the trajectory calculation. Love to have the time to go through that code and figure out how it's done.