Haha, totally agree. Spirit is by far the best horse movie out there.
As for the others....eek. I liked Secretariat enough to watch it twice, but no more than that. I didn't like the Black Stallion, but the first season of the series wasn't half bad. The second was crap though. Didn't even bother to go see War Horse, hated both Flickas, and Touching Wild Horses was ******ed as well. I did like Misty of Chincoteague and Dreamer wasn't TOO bad.