Well, the rule books I found had a lot of information on how the show is run, but not much on judging. The classes I watched were English, simply walk, trot, canter, but the riders I thought looked good were not necessarily the ones who won. (That just goes to show how much I don't know.) I did find something on Horsemanship which said basically that everything should just be seamless and smooth, position correct and the rider should make everything look effortless. Would that have been about right?