CanadianMaestro
Headphoneus Supremus
Still leaves room for Pollini & Levitt in the late sonatas, and Perahia for the odd few he has recorded.
Perahia hasn't been on my radar for Beethoven sonatas -- Pf Ctos yes (I have his magisterial set with Haitink and the Concertgebouw). He's my pick for Chopin, some Schubert (D960 is fabulous with him), and of course, Mozart (his pf ctos with ECO are my references, along with Geza Anda's set with the Camaerata Acad Mozarteum).