My opinion is that thoroghbred horses and quarter horses are the best horses for sprinting long distances and are super nice. They always have a personality and spirit.
I live in wisconsin and love to ride at country view Equestrian center in monroe. They have a nice selection of horses to ride and buy. Brandi and Crimson are great instructors and are always there to help. all the horses are well trained and are used to people. i love that they have horses of all skill levels.
Horse opinions 
 wisconsin stable
if you have any questions you can click on the link below.  
monroe equestrian center- 
Equestrian style