I prefer the late sonata's (Nos 30-32). The last one is so often underestimated, which is sad because of its beauty. There are other gems "in the middle," such as No. 23, 12 and 21. The 3rd mov't to the 12th is very nice; it sort of reminds me of the Allegretto movement from Symphony No. 7, with the slowly moving motif....the kind that echoes in your mind night after night (in a good way ).

Im not a pianist, only a listener, so I cant comment much on the playability.