For a complete set: Wilhelm Kempff; it's just phantastic, phenomenal!For a several sonatas I like the Pollini recordings quite a lot, especially 958 and 959. I think that in particular his 959 recording (with Deutsche Grammophone) is unmatched.
Maria Joao Pires: She is the pianist who is able to bring out the real romantic character with a very fresh kind of playing and a very constant line in her interpretations... and she plays soft an tender and nevertheless so strong... greez opus57
She´s amazing