I competed with someone last fall -- our first-ever contest. We turned in wings, and didn't score well. Near the bottom, of some 45 teams. We're not going to try that again.
Since then, we've been in three other contests. Chicken thighs in each (with a new recipe). Top half each time, with a 4th place in one contest.
So, it's only anecdotal, but honestly I think enough judges really dislike the idea of wings that you can't really score well with them.