So the brawl bugs fix on the nexus is about as hit-and-miss as vanilla brawling. Mod added npcs almost never work, and vanilla npcs still are about 50/50. Brawling currently doesn't work with or without mods, and it's incredibly frustrating. I'd like to be able to enter the fighters guild without being killed by Vilkas a couple times, for example.
It'd be fantastic if someone took the time to do a more functional repair of the brawl system, or perhaps replace it entirely. Replacing the system entirely might be more effective, but as I'm not a modder, I could be totally off base here.