Budo and a Block of Wood

During a recent conversation on budō, the topic of just how difficult it is to judge a kata in an open karate tournament came up. For a JKA black-belt to judge a series of JKA kata is not too hard. But, what if he has to look at a series of kata from schools as diverse as Shorin-ryū, Gōjū-ryū, and Wadō-ryū? Aside from the fact that there are major differences in techniques, there will also be some major differences in the philosophy behind the techniques.