I prefer Romantic- and early-20th-era composers to most others; if I listen to older compositions, it’s usually because they are in a minor key.
I really like Dvorak, especially his New World Symphony. (4th Mvmt.)
I like Andrys’ piano playing, especially this Chopin Prelude
and this Bach Prelude. (Sorry about the weird spacing…the code is acting funny.)
I’d like to second Rimsky-Korsakov’s Scheherazade, as well as Tchaikovsky (really, all he’s written is amazing). I really like his Romeo and Juliet (most overused love theme ever, at 3:06) as well as his Swan Lake (theme, careful, it will get stuck in your head!).
I like a lot of Debussy, including his Children’s Corner, Arabesques, Estampes, Pour le Piano and a couple individual pieces. However, I adore his Suite Bergamasque (Prelude, Passepied, Menuet and Clair de Lune). Prelude. (Clair de Lune does get overplayed, though, especially after Ocean’s Eleven.)
Gustav Holst is another favorite, especially with the Planets Suite (Jupiter and Mars) although his First and Second Suite (second 2 mvmts) are also very, very good.