The problem with polls is that they are the end point of a discussion. All history is lost. The options are equal. There is no opportunity to weigh options diff

The problem with polls is that they are the end point of a discussion. All history is lost. The options are equal. There is no opportunity to weigh options differently using different scenarios. I'm looking for a way to summarise different answers and let people change their mind as they go. Something that enforces structure would do it.