My personal preference is for walking or standing horses, but I appreciate that I'm in a small minority, and that units on walking or standing horses are probably not commercially viable.
I too like walking &/or standing horses. I think it is the pose they would be in most of the time.
By the way in my early ECW wargaming days I wanted my Pike men in the charge position.
A friend, ex-RN, had his either standing pike upright, or walking with pike resting on their shoulders.
Joining the SK persuaded me that my friend was right. On one particular occasion the CO (no names
no pack drill) held us at the charge for an eternity while he explained the Civil War to the crowd.