I really like this idea for the final comp.
What if everyone who competed in a comp throughout the year was allowed to compete, no matter how you finished. Say there are 40-something people by the end of the year. Maybe 12-14 or so people either don't show up to compete/don't have time and therefore don't except the spot. So, maybe we are then left with 29 players. There can be a very brief first round (very brief indeed because of the judging involved), where everyone submits something and however many people there are it gets whittled down to 16. Then it plays out as a tournament would, and the points would determine the seeding.
Of course if we did something like that idea we'd probably need more than just one month to host it, which could hurt scheduling.
Anyways, other than that, I agree with a lot of what was said. I like fewer convos, and having te community vote whic comps to have would be a good way of doing it.