Take a look on Op 62 No 1. In the last Chopin competition of 2010, all of Yulianna Avdeeva, Daniil Trifonov, and Evgeni Bozhanov played it, and I was amazed how different their interpretations were from each other. And I think the piece gave a very distinctive impression of each performer. (I am such a Chopin geek, I watched most of competition on live through video streams!) It's a great piece, musically very sophisticated.