So I have three questions:
(1) What do you think the criteria for judging forms—kata, hyungs, whatever—in MA competitions actually are?
Well, when I judge Ch'ang H'on tuls, I use the following criteria from
The Encyclopedia of Taekwon-Do, by Gen. Choi, Hong Hi, as those are the criteria on which our judging is based.
9 Points to be observed while performing patterns:
1) Accuracy. A pattern should begin and end on the same spot.
2) Correct posture and facing should be maintained at all times.
3) The muscles of the body should be tensed and relaxed at the proper moments.
4) A pattern should be performed in rhythmic movements with an absence of stiffness.
5) Moves should accelerate or decelerate, according to the instructions.
6) Each pattern should be perfected before moving on to the next.
7) Students should know the purpose of each movement.
8) Students should perform each movement with realism.
9) Attack and defense techniques should be equally distributed among left and right hands and feet.
(2) What do you think those criteria should be?
In general, patterns should be performed with power, balance, and focus, with good stances, and with consistency - if 2 people are performing patterns, and one is off balance, has no power, no discernable stances, and every move takes a different length of time, chances are I'm going to think the other person is better.
(3) Do you think there's any reason why different arts should use different criteria for assessing the 'quality' of forms performance? I.e., should an Okinawan kata be judged by different criteria than a WTF hyung? Why (or why not)?
Well, the above criteria are my base, but some of them are not applicable to all styles or all situations. #1, accuracy, may not be relevant to the patterns of all styles - while the Ch'ang H'on tuls are designed to start and end on the same spot, not all patterns are created that way. Likewise, any of the criteria which require knowing the pattern well are not going to apply in an open tournament, and care must be taken to not weight the judging in open competition toward the patterns type(s) known best by the judges. So for tournaments run by the YCTA rules, I use the 9 criteria listed above in response to question 1, as those are our rules for judging patterns competition; for open patterns competition, I use the criteria listed above in question 2.
Pattern performance criteria are going to vary from style to style, based on the types of techniques emphasized from the style - but good patterns are differentiated from bad ones by the overall consistency of the performance; as I said above, if the stances are visibly consistent within the pattern, the techniques are performed with balance, focus, and control, and the timing is consistent, the quality of the performance will be visible through the differences in style - and that quality is what should be looked for, rather than adherence to set of criteria that may well not apply across styles, as applying the criteria of style "A" to style "B" generally creates an unfair advantage for the stylists in style "A", even if stylist(s) from style "B" are better.