Chaoscopia is a very cool site. It features artworks generated from mathematical (fractal-based?) algorithms - though I wouldn't have guessed it just by looking.
Here's a sample:
Check out the galleries for more.
Speaking generally, I tend to find computer-generated drawings and animations more aesthetically appealing than hand-drawn stuff. I'm not exactly sure why. Perhaps they can achieve extra clarity, or vibrancy of colour? I don't know much about art, so it'd be great to hear from someone more informed as to just what the differences are. I guess as far as movies go, CG animations look a lot more realistic than cartoons, and can have more fluid movement, etc.
But I even find some CG landscapes to look more beautiful than reality. Others can look quite disturbing, though in an exciting sort of a way. CG art often strikes me as having a feeling of magic or perfection/precision to it. Does this make it better at portraying extremes of utopian/dystopian imagery, perhaps?