I love this to bits:
https://files.catbox.moe/p5m3j4.mp3 [Play]Also this:
https://www.youtube.com/watch?v=J_36x1_LKgg [Play]The performance adds a lot here.
I really like Rachmaninoff's first piano concerto.
When it comes to bach, my favorite stuff is the first two cello suites, for no reason other than I ended up listening to them a lot when I was around 11 years old. I will say though, that having just one instrument does make things feel more personal and intimate as opposed to orchestras that often sound grandiose. I prefer the former, but then again I do love rachmaninoff's first piano concerto.
Overall, my enjoyment of classical music is pretty spotty. Sometimes something can really drag me in, but then I won't necessarily dig the composer's other works. Maybe it's just a matter of many repeated listens, I don't know.
Generally something I don't really like about classical is the fact that it can be hard to find good recordings. The greatest performers seemingly came when recording technology was still developing, so often the recordings aren't that good. Unfortunately, for some reason recording quality matters a lot to me and affects my enjoyment of music a lot.