Ah, the old judging chestnut I see!
IMHO, most contests here in the UK are a debacle, invariably the judges have no comprehension of the subject matter, quite often someone will be dragged in last minute as they can't find anyone to judge that category. You have to have people who are respected and able to build and paint to a high degree in the category that they are judging.
I was at Hornchurch recently and in the car section (my other modelling interest) the 1st place went to a hunk of rubbish (IMHO), but it was large 1/8th scale, so had impact. the build was clean but lacking in detail. IMHO the paintwork was well executed, but the fleck in the paint was far too large so looked out of scale and odd. My point is, is that if you don't build the subject how can you appreciate the subtleties. To rub salt in the wounds it went on to win best civilian vehicle in show!!
Another beef that I have is that invariably other than aircraft and AFV's there is normally only one category - all scales, again at Hornchurch for the cars this was the case, and the skills are very different for each scale, how on earth can you judge between a large piece like the 1/8th Camaro and a 1/24th Porsche. The same thing happened with the figures - two categories, mounted or unmounted, again how can a 30mm or 54mm figure be compared to a bust? Far enough if there are limited entrants in any given category, you then could amalagamate them or scrap it all together.
IMHO all competition entries should be judged on their own merits, much as they did for the Old Model Engineering Exhibition and do somewhat for the IPMS Nationals here in the UK.
I totally agree with you all that quite often judging is partisan and actually bears no resemblance on the entry or abilities of the modeller..
Although I did get a placing (3rd) with one of my entries in the car category, I think that there were better models on the table.
One thing that was apparent is the fact that at the last Hornchurch show that I went to some 3 years ago, you couldn't move for entries, this year there were hardly any, I think that modellers are voting with their feet and just not submitting models into competition, primarily because they are continually let down by the judging I suspect.
Naturally only my opinions, but would be interested in hearing other people's views on them.
Thanks
Tim