I watched some of this competition live, and have also seen alot of the videos. The sound is far from ideal but they are still very enjoyable.
I would recommend especially Chpin etudes op. 25 played byt the other girl who played them, the asian one (forgot the name). Despite not making it to the finals she received a special award for that performance.
I also liked many of the performances by Jie chen (the eventual winner), Benjamin Fong, Konstantin Krasnitsky, and Hanna Shybayeva (sp?), although I'm sure there are gems among the other performances as well.
Hopefully next year they will find a way to have better sound quality.