In a perfect world, NONE
Loudspeakers are designed to "Faithfully" re-create what is on the source material regardless if its Susan Wong whispering loves notes to you or a Galactic cruiser travelling at warp speed. Sadly not all loudspeakers and the engineers designing them can do this, their hands are tied due to available technology, cost, size and target market constraints. So what the manufacturers end up is several "types" of speakers to cater to each need. Some are brash for HT and some are seductively sweet for 2 channel listening, but at the other end of the spectrum, the uber high end, you can have your HT and Music too without compromises