kopeckiy , Here are deducted ...
The most common and cheapest breed riding - Tennessee Walkers, Kentucky Shortlers, Morgans, etc.
Draft horses to carts - Sheyrs, Suffolk, Belgian breed;
Peasant horse - Vormblad, Appaluzskie, American Paint. Very stable, but slow horses;
Horses racing - American standard, Nokota, Turubred. Poor health and stamina, but excellent speed and acceleration performance
"Martial" racers - Halbbred, Andalusian benefits. Good health and endurance indicators
Hybrid breed with balanced characteristics - Mustangs, Missouri Fox Trotter, Turkomans. Perfectly suited for personal use and for sale
Arabian breed - a separate category of horses. The best horse in the game and for the race, and for the chase, and for sale.