Horses are a key component of combat. For more information see the mounted combat page.
This table is comprised of raw data extracted from item_kinds1.txt
using the M&B Item Editor.
The bottom part of the table shows what is changed with the different
horse quality modifiers. As a general rule, Heavy horses are the
absolute best at combat while Spirited are the absolute best at speed.
In practise, merchants will normally charge more for horses they sell and pay less for those they buy. Putting points in Trade will bring these amounts closer to the horse's true value.