I vote for mass lynchings.
But I know that they are not to everyone's taste. If we are not to have mass lynchings, then we need to know what will happen in the event that two or more Villagers are tied on votes at the end of the Day. I always liked the idea that the first one voted for then gets lynched, as it adds an extra tactical element to voting.
Oh, and I greatly favour non-retractable votes.