My list is ranked in order of the greatness of the work. The stuff in brackets are suggestions.
Bach Goldberg Variations (Both Gould recordings)
Schubert Wanderer Fantasy (Richter, Hamelin live,
Liszt Sonata (Ho 32(?) rec, Gilels)
Beethoven Late Sonatas
Chopin Ballades, 1,4 (Cortot, Hofmann(!)
Alkan Opus 39 (Hamelin, Lewenthal for Festin)
Schumann 3rd Sonata (Horowitz, Berman)
Chopin Preludes
Chopin Sonatas 2,3
Scriabin Sonatas 2-5
Prokofiev Sonatas 3 (Gilels, no competition), 7 (Argerich, Sultanov, Gould for the last movement)
Sh*t...that's 11! (well, more actually) whatever.