I am using the Opinion Stage plugin to run polls on https://www.nokilltracy.org, a site promoting the end of the routine killing of animals in our local shelter. Opinion Stage gives me endless ways to engage our audience by posting questions on Facebook that lead back to the site for analysis. The software is very simple to use. Start with a simple poll and experiment. The polls work well and look good on the site.

Simple and customize able. Used it for blog posts that require polling.

I don't know! Too much really to find a best.. its like asking.. what chocolate is best? All of it? On a serious note, it is very powerful but easy to use. You can tell a lot of work went into the interface to accomplish that. The more powerful software is, the more difficult the interface for the user usually is. So I know they spent a great deal of time really thinking about how their customers would use it. I appreciate that. The variety in poll types you can choose from is another HUGE gold star in my book. I looked high and low for a good "outcome" based poll. I am so glad I found this one. And the service... jeez... I work all kinds of hours and there seems to ALWAYS be someone there in the little chat box ready to answer questions or help me out. Amazing turn around time if its not instant, its within a couple of hours. Can't really ask for more.