We agree with Ms. Judy Smith that there is no one ” best breed “ for a trail horse. Check out her video. An experienced trail rider, she recognizes the most important attributes are willingness to go wherever the rider wants in a safe manner. One difference is our preference for the American Quarter Horse even though any breed will work. We like the quarter horse especially for beginners who have reached more mature ages. Although not gaited like some breeds, the quarter horse offers a smooth ride at a slightly slower pace. New trail riders need to have time to react to situations.