Recordings worth getting/listening to, most of which are widely regarded as benchmarks.
Goldberg variations Gould 1955
Debussy Gieseking
Islamey Katchen
Grieg Lyric pieces Gilels
Blue Danube Lhevinne
Rachmaninoff Concerti 1 & 2 Rachmaninoff
Rachmaninoff Paganini Rhapsody Ashkenazy/Previn
Rachmaninoff Midsummers Night dream Moiseiwitsch
Rachmaninoff Symphony No. 2 Ashkenazy
Czerny Variations on a theme Horowitz
Horowitz transcriptions Horowitz
Liszt Tannhauser Bolet
Liszt Sonata Bolet (for majesty), Argerich (for virtuosity)
Liszt Hungarian Rhapsodies + spanish rhapsody, Grand Galop Cziffra
Liszt Mephisto Waltz Kissin
Chopin Fantasie Solomon
Chopin Piano Concerto No.1 Cliburn especially for slow mvt
Bach Partita No. 1 Lipatti
Alborada del gracioso Lipatti (his own favourite recording)
Bach-Busoni Chaconne Michelangeli (one italian talking to another italian through Bach)
Bach Italian Concerto Michelangeli
Ravel Piano Concerto No. Michelangeli
Rachmaninoff Piano Concerto No. 4 Michelangeli
Liszt Piano Concerto No. 1 Michelangeli
Brahms Paganini Variations Michelangeli
Brahms Ballades Michelangeli
Scarlatti Michelangeli
Schumann Kinderscenen Annie Fischer
Schumann Fantasy Richter (Fiorentino is supposedly better but I haven't heard it)
Prokofiev Suggestion Diabolique Richter
Beethoven Symphony 5 & 7 Kleiber
Chopin Nocturnes Rubinstein
Chopin-Godowsky Hamelin
Beethoven Piano Sonatas No. 8, 23, 29, 30, 32 Serkin
Waldstein Gulda
Tempest Brendel on vox
Albeniz De Larrocha (have not heard Hamelin yet)
Granados De Larrocha
Rachmaninov Polka Cherkassky
Gershwin-Wild transcriptions Earl wild
Mozart Sonatas Uchida (she has the most refined touch)
Schubert Piano Sonata No. 21 Kovacevich
Schubert Piano Sonata No. 20 Andsnes
Chopin Op. 10/1 Argerich
Chopin Op. 25/6 Anievas
Chopin Sonata No. 2 & preludes - Argerich
Moszkowski Etude in F Yundi Li
Grieg Piano Concerto Andsnes/Jansons
Tchaikovsky Piano Concerto no. 1 Demidenko