gee good question... with me and the big Foxtrotter and TWH necks/heads people are always saying "I hate those big heads and look at that neck" but for me it doesn't matter what a horse looks like as long as the horse is comfortable to ride. I always assumed the neck was a balanceing tool in some way for a horse and acted differently for different gaits but...essentially it was just something for people to either like or dislike esthetically. I don't happen to like that bull dog head on some quarter horses for example.... and I'm a real fan of a "roman nosed" horse... stuff like that....
"By endurance we conquer" - Ernest Shackleton