I know this mightn't answer you question as you would've liked it to be answered, but I think it depends on what you want the horse for, rather that what horse is best. hope this helps xxx
Kentucky, the horse capital of the U.S.
the best racehorse in the usa is the thoroughbred
The Eohippus horse was the firsthorse to help us!
The best horse without the game of the year addition is the Black horse.
the best horse for jumping is not a heavy built horse like a shire but a light built horse like an arab!
the best name for a black horse is Majestic
Templado the horse is one of Frederic Pignon's best horse
the horse is at it's best around age 8 thru age 15
Horse breeding in the US is quite popular. Horse breeding can be a hobby or a profession to some people. The US horse industry is a $100 billion dollar industry and a good majority of that money comes from breeding.
The best shampoo and conditioner for a horse is the one that works best for your individual horse. Not all shampoos work the same for every horse and it will be trial and error to find and brand that works well for you.
The Quarter horse
There is no one best place in the entire US for a horse barn. You have to factor in many variables including, but not limited to: The number of horses you plan on keeping. Can the land support that number of horses. How you plan to house the horses ? Can you handle the weather in a specific location? Are there other horse people around? And, The feed and care costs in that given area. All of these things factor into what is a good location for you and your horses.