In order to create a Poll, go to the Dashboard > New Campaign > Choose Question
Click on "Send Poll" tab and add your question with multiple choice responses like this:
What is the difference between this poll and poll in Form?
The advantage of this poll is that not only you can gather information about your customers but you can also use those answers to target them based on their answers in future campaigns.
More on targeting find in this article.
When do people see poll results?
Each individual will get an update with the poll results 24 hours after they submitted their answer.