The Markbass sound imo works really well with Precision type basses, and although it’s a clean sound it is a warm clean, not hi-fi at all, just a really nice warm presence in the mix.
That said the Rumble imo is able to do more, due to having the drive facility. Additionally being a 2x10 I’d expect it to have a larger presence in the mix, though the CMD isn’t a slouch in that area.
I think in the same position I’d go Rumble for the greater versatility.