Blue Danube - Kristi's 92 Olympics http://www.youtube.com/watch?v=M9yz4PmYi-0
While Kristi's is no doubt the best in terms of technical difficulty combined with artistry, I think this program is the best performance, musically speaking, of The Blue Danube.
http://www.youtube.com/watch?v=NrR6nOXaXgA&list=FLT2IFgeponCwsOmaGDVXmoQ&index=26&feature=plpp_video