In my opinion as well the S62 is vastly better sounding motor, then again I'm bias for a good V8 track - they just hit all the right notes and tones that really stir the soul...
Somehow the V10 with its particular firing order is not anywhere near as alluring, if anything it's annoying to my ear... like a loud Honda, I think if they sounded more like the V10 Dodge viper I'd like them more, but of course they run a different firing sequence among other design differences.
Eg,