I don't get how dynamics and nuance are mutually exclusive but my favorite (of the several I've heard) is Andrew Litton with the Bournemouth Symphony on Virgin/EMI. Excellent dynamic sound and attentive, soulful playing.
I attended an audio GTG yesterday in NJ, ostensibly to hear some Galla 3.5 speakers, but actually to give me a reason to have made the 2 hour drive to Princeton Record Exchange. I've been trying to fill my Shosty collection, (still can't find #7), and a collection of Beethoven Piano Concertos. And the very 1st thing I saw, Litton's grouping of Tchaikovsky 1-6. And then the Mravinsky grouping, which I also grabbed.
I'm thoroughly enjoying Litton's version of Sym #6.
But then I next saw the Schnabel Complete Piano Sonatas - Beethoven, so I had to put Mravinsky back down. What a good day picking through bins of used CDs.
Still, didn't find the Shostokovich pieces I was looking for, guess I'll have to make the drive again in a few weeks.