Day 12 -- I'd post the Master Fic List and then start in on the corrections as people left comments pointing out my mistakes. I'd also start compiling the stats, which was another really tedious process that took a few hours. It's something I finally gave up on in the last Battle and like everything else, it'll be up to the new mods to decide if stats are something people want.
As I mentioned above, for the fifth Battle, the prompts were listed off line and in a slightly different order. We let the people who left the prompts categorize them into several categories. After the fact, I'm not sure if that was actually a good idea or not; it made for a little more work, but not much, since I simply went by people's categories.
The bursts of work happen around the lists, both the Prompt List and the Master List of Fics. One of the things that might help would be having one person collate the prompts and then having a second person collate the Master Fic List.
There are probably places where the process could be streamlined; I think Helens used a spread sheet for the prompts for her Battle, but I'm not spread sheet savvy so I never tried.
One of the biggest issues for me was multiple names for single fandoms. This was usually a manga/anime issue, which made it hard for me because I'm not at all conversant with that part of fandom.
There are some decisions the next set of mods will probably have to make: Does the prompt list stay offline or should it come back to the comm? Should the arbitrary alphabetizing guidelines for prompts stay, or should they change? (For example: we insisted that it was "The Chronicles of Narnia" instead of "Chronicles of Narnia, The" and some people weren't happy with that.) Should the stats be brought back or did people really not miss them that last time?