On phone so ceebs responding in depth, peter...
Yeah, I generally don't enjoying the baroque or classical periods that much as romantic (ugh when people think CM is just Bach and Mozart and maybe Beethoven, who's at least a significant improvement
), and having mixed feelings about more contemporary.
Of your recommendations, the ones I already knew were Mahler 2 (how good is the ending!!!), the Debussy pieces and Rites of Spring (always loved it). Will listen to the others! I agree that I'd love to widen my tastes ever further.
You're right that I know almost everything Chopin inside out, similarly Beethoven. So much love for them, though I prefer orchestral music (ideally piano concertos to get the best of both worlds) to plain piano music like most of Chopin's; nothing can beat the sheer agony or soaring exhilaration of the strings taking a powerful melody.
As for today's recommendations: was going to recommend Dvorak's 9th (New World) symphony, his most famous and most insanely brilliant work, but then I was listening to his 7th and 8th and cello concerto and I can recommend them all.
Also re. the Rach 2, MSO is playing it at one of their Sidney Myer music bowl free concerts next month!