All that being said, it's just a color. I would not buy a horse based on color...
The American Cream Draft Horse is exactly as the name describes.
First, it is truly American, with roots back to a mare in central Iowa around 1905 known as “Old Granny” who was the foundation mare of this breed.
Second, it is Cream in color, which is one of the three main physical characteristics manifested by the working of the “Champagne” gene. The other two traits which are obvious in an American Cream are the pink skin and the amber colored eyes. (note: her offspring were very popular because they were so beautiful because of that unusual color.)
Third, they are a draft animal, built as those originally used to farm in the breadbasket of this country before the age of mechanization.
ACDHA - American Cream Draft Horse Assoc.
Just sayin'.....
YOU may not have chosen her because of her color, but her entire breed registry IS based on color.
Aside from that, everything else you said was excellent Phyx - not much can be added to your post. When evaluating a performance horse (of any breed), color is icing on the cake. Paso's post is a super way to put it.
My breed has a very popular and unusual color - but not all horses of that color can do the signature gait. It's all based on structure.