Sudden vote switches and chaotic behavior was NOT par for the course when I first started playing this game. AOK was considered one of the most brilliant people to play the game, and it was years before he came up with his "third party switch" style.
I consider you to be a lot like the early AOK, Capt. Kiwi. At least in the way you analyze things. A lot of those older players were brilliant players and great at analysis. Don't flatter yourself in saying "new" players are simply better villagers than the old ones. I am glad that we have had a surge of players willing to analyze and avoid crazy third person switches. You've also had reis91, tamius23, and Boris ze Spider playing in all these recent games. They have certainly not been "ideal" villagers. It seems more reasonable to me to say the "new" players are simply worse wolves (and frankly, more of this game depends on how wolves play than on how villagers play, a perfect villager won't catch a perfect wolf, but an imperfect villager may catch an imperfect wolf).
12/3/1/1 was the standard universally accepted setup when I joined (3 wolves, 1 sorc, 1 seer). They removed the sorc and added an extra wolf, because they felt the 12/3/1/1 setup gave the goodies way too much of an advantage (the wolves always ended up hunting the sorc before he could get in contact). That 12/4/1 setup was agreed on, and played for years with no complaints. 12/4/1 is easily the most universal and accepted setup. 12/4/1 has been played more often than every single other type combined. It would be impossible to have a near 50% win ratio if 12/4/1 was so imbalanced.