MIDI can be played on acoustic pianos using a Disklavier/Opus7/Pianomation player, although the cost of such equipment is greater than that of a digital piano or software synth. But, when available, such equipment removes any sound quality issues in comparisons, allowing a full demonstration of MIDI capabilities.
MIDI, when properly programmed, renders rhythms as notated and plays all notes accurately regardless of tempo. So, compositions that are intended to be fast with intricate rhythms and harmonies can be rendered as notated. Syncopation, particularly, requires careful attention to the rhythm in order to achieve the full effect.
If a composer was involved in creation of player piano rolls before the reproducing piano (that is a piano capable of recording a manual performance on a paper roll) became available, that also suggests the MIDI would be of particular interest. Ealy rolls were punched by hand according to the composer's notation.
Scott Joplin's piano works fulfill the two criteria above. In fact, I made a CD of a select group of them from throughout his lifetime. It's now available at
https://www.cdbaby.com/ritchie . "Gladiolus Rag" among others is one piece that is rarely heard near the intended tempo of 100 qpm.
Organ and related works are also especially well-suited to MIDI, because the instrument lacks the expressive possibilities of a piano.
In fact, MIDI is inherently capable of rendering notated piano compositions more accuately than a human performance. But, some jazz pieces, for example, require a great deal of rubato in solo performance. Gershwin's "Rhapsody in Blue" is one example. Although rubato can be programmed, it's not notated very precisely; in such cases, the notated and intended performance can differ and MIDI doesn't have an inherent advantage.
Regards,
Jim Ritchie