#21. I like a different sort of classical music - Rachmaninoff, Prokofiev, Liszt, Schubert ... but I don't know how anyone could not like the piano concerto #21. And you're right about the G Minor Symphony. I didn't know this was one of only two symphonies he wrote in an entirely minor key? It might have something to do with why it's one of the few Mozart pieces that speaks to me.
I have a recording of David Bowie narrating Peter and the Wolf. It's ridiculous.