Since my wife is a cellist, we have many recordings of the Bach suites for cello solo -- 19 the last time I counted -- and have heard a dozen more. Yo-Yo Ma is (to me) an engaging entertainer, a great cultural ambassador, and a good (but not great) musician. His video/art sets on DVD that pair music from the cello suites with performing arts (called "Inspired by Bach") is a creative and enjoyable artistic achievement. And I was mighty pleased to have met him when he played at the 50th anniversary gala of our regional symphony.
However, all that said, none of his recordings of any cello music achieves the top tier. In that very competitive arena of the Bach suites, my top choices would be Starker on MLP and Janigro.
As for my listening beyond Mahler -- well, almost all of my listening is beyond Mahler. This week, I've been enjoying the symphonies of Gernsheim, especially the first. These symphonies are solidly in the romantic tradition, very deeply indebted to Brahms (he was a contemporary of Brahms).
My favorite Myaskovsky these days is the stunning 25th, which is perhaps, beginning to end, the most beautiful symphony ever written, and right up there with Ralph Vaughan Williams "Pastoral" on my pleasure-meter. Where RVW is exotic (you've heard this music ripped off for every movie ever made involving Egypt), Myaskovsky is melancholy, with one beautiful melody after another throughout.
I also pulled out some old LPs by the group Oregon, featuring classical/jazz guitarist Ralph Towner, oboe, tabla, double bass, violin, etc. The unique soundscape and music of those guys is (to me) rather like a 21st century version of chamber ensemble, and it holds up very well even now, sounding modern and innovative, 3 decades since I first ran across them. Most of their releases are available on CD, but I still prefer the sound of LP.
And then for fun, it's Zucchero. This guy has been a superstar in Europe for decades, but is largely unknown in the U.S. His DVD "Live at the Royal Albert Hall" is a parade of stars (including Clapton, and the DVD also features videos with Pavarotti, Miles Davis, and Stevie Ray Vaughan), playing hit after hit from his vast and stylistically diverse repertoire.
On the schedule for this weekend is a viewing of the DVD of Tchaikovsky's Pique Dame (Queen of Spades). I've never seen it or even heard any of the music from it so far as I'm aware, but my trusted friends of opera tell me that it is excellent.