As I'm sure you know, many synths these days come with onboard factory preset demos. Some of the demos are crap and some of them are so impressive that it's hard to believe that they *really* came from the synth in question.

What would you say is the best sounding factory demo of a synth that you've heard so far?

And for a laugh, what would you nominate as the WORST demo you've heard?

To make this a fair, let's allow official downloadable demos from websites (such as the official Korg, Roland site... etc).