Martha Argerich, wow. I didn't expect to see her name in a thread here. I really like her Rachmaninov 3rd. She's such a fierce lioness! I had a youtube link to the finale of Prokofievs 3rd concerto, but somehow it's been removed. But I'm sure it's still out there (can't be bothered to search now). The last 2 minutes are unbelieable
I think I have 5 or 6 of her Schumann Concerto recordings lying around, including one made when she was 11 years old (on medias like LP, cd, dvd and blu-rays).