The standard of judging at local level varies widely, you can get the really good to the truely terrible (and I write them down in a little book and don't show under them again). Judges do have certain preferences though, and while one will want lots of presence, way of going or a lovely topline, others may be more concerned with correct limbs, or blemishes like splints and curbs. If every judge had the same preferences, showing would be pretty dull, and you can't see everything from the outside the ring that the judge can see up close. Saying that, there's "facey" juding at every level, which is extremely frustrating!
I've just returned from judging in Jersey. I only recognised one pony and one person during 2 days of judging, and it was so refreshing to know that competitors knew that we couldn't be facey. There were some horses that went well that didn't have the best conformation or fit the type for the class, and others that were stunning but had some blips in their performance. It's the job of the judge to sort out what's more significant.
As one of the posters suggested, going to showing clinics is a great way of finding out how to improve - sometimes you're doing your best and think you've got it right, but there could be some things that could really propel you up the line up.