I've got that second youtube link playing in the background at the moment. Personally I can't tell the difference between him and other pianists. I bought a CD of Beethoven's Hammerklavier, played by Mitsuko Uchida after reading a review somewhere but again, I wasn't able to tell her from any other version. It sounds like after a point, it's only the most tutored ears that can tell the exceptional pianists from the merely ace.
Anyway, here she is tickling the ivories:
http://youtube.com/watch?v=KTC7Xv85pE0
And here she is talking about and playing some Schoenberg. I love it when experts start talking about stuff:
http://youtube.com/watch?v=PmWRttCo7lo
Edit: I take it back about liking experts talk about stuff. Well I usually do, but having finished watching that last clip, she sounds like a total nightmare.