Just to pile onto this. I am a certified judge, and really do work hard to give feedback that will help the brewers I judge to improve their craft.
That said I have 2 experiences to relate:
In judging a recent competition I was paired with a gentleman 30 years my senior, also a certified judge, and a very good brewer (I've had his beer). We were judging historical beers and on one particular beer I came in at a 38 and he was at a 23. He even agreed that it was better than a beer of the same style that he had just given a 30 to. So I took a stand and really fought for that beer. It was uncomfortable, it took about 20 minutes of discussion and arguing, and eventually he relented and we agreed on an average score of 34. That pushed the beer into a mini-bos round (which was my goal) and side-by-side it was "slap you in the face" better than all the others in the flight except 1, and ended up taking second place by consensus of all the judges present. My point in relating this, is that judges are not always rational or logical in their approach to judging, and their partner will not always push against a score that clearly doesn't fit the beer.
Second, I entered 7 beers in that same competition and took 3 golds and a second place BOS. One of my golds was for a stout that scored a 40. Two of my beers that didn't place were and IPA that scored a 38.5, and a Helles Bock that scored a 31
I entered those same beers (bottled on the same day, in new bottles) into a second competition and just got the results back. The stout scored a 27 (compared to 40 the week before), and the IPA scored a 23 (compared to 38.5) and the Helles Bock scored a 37.5 and took a gold.
I'm very interested to get the scoresheets back to see the feedback to see if there was an infection or something because that point spread is very strange.
What I tend to do in this situation and go with the opinion of the judge who's feedback matches my own perception, and who clearly put more thought into describing what they are tasting. If a judge gave me a score of 23 and wrote "funky roast character, not a fan" (I have seen that on a scoresheet), then I tend to discredit their scores and ignore them.
For example on my scoresheet for the Helles Bock that scored a 31, one judge provided a very well written description and could clearly taste a touch of DMS and sulfur. The second guy said my malty clean lager tasted like "pumpernickle, and honey coated toast with plum jam".. a comment which is not only not helpful, its inaccurate since there's no rye in it at all. But based on these sheets it's pretty easy to tell who's opinion to take more seriously.
At the end of the day, your own opinion is the only one that matters.