The closest thing I have trained in that may be called a stance, is the gunfighters pose. Which is basically like normal a walking stance(Very good for Pre-emptive striking) if surprise is gone I simply put my arms up as if jogging.
I have done horse stance training with my kettlebells, but mostly for developing balance and core strength(from my experience thats what the horse stance must be used for, and maybe for actual horse back fighting).
I simply feel that the human body is most relaxed when in its natural form, and without tension I feel I can Deliver/Avoid blows with ease in this state. I think the best advantage to it is the fact that I can usually avoid having to parry or block, by quickly and easily moving out of the line or circle of attack.
I prefer not to give the opponent a sense of myself parrying only if neccesary, and preferring to give them no stopping point and simply letting them over-extend themselves by missing me.
I may be missing something though? So if anyone could please explain the advantages of stance-work.
Peace be with you all