What's musical and what's not are subjective in nature, so no right and wrong answers there
Now what gives a more linear and flat response is a different issue, now those can be measured, but by no means a gauge of whats better or worse, because the "flavor" that one prefers is in itself subjective.
I personally prefer a tone that is near neutral, with strong emphasis on the mid range and with slightly rolled off highs (to some, this is slightly warm), which is the reason why I have tubes for my stereo, wherein tube rolling is an option to cater to my tastes.
For ht, I prefer a neutral if not flat response curve, which for some might appear a little "bright" when playing movies (movies were recorded that way), which is the reason why I use Audyssey's FLAT eq, my room though is treated, which of course affects the sound - for better or for worse.
In my personal and subjective taste, both flavors are musical to me.
Cheers