In my opinion, people should breed to what they interpret the standard to be for their chosen breed. They need to breed for that and not what is winning at shows (if it is different) and be happy with the outcome, win or lose. While I love looking at a bird with a perfect comb, people are focusing on this one detail way too much. As NYReds said, it is only a 1 or 2 point cut out of 100. Look at the overall bird. If you are dissatisfied with the judging, after the show, ask the judge as to why he placed the way he did. Also, using Orpingtons as an example (as that is what has been brought up recently) as far as type goes, make sure you know what the American standard says it is supposed to be and not the English standard. I know it's an English breed, but we are judged according to the American standard. If you want to breed to the English standard for body type that is your prerogative, just don't be upset if you don't do as well at shows. If you think the English standard is best, then start working at getting our standard changed.
David