Howdy, you'll need to know which approved plugin it is that you'd like installed. "Best" is a very qualitative term; it means very different things for different people.
I don't know of an approved poll plugin off hand. If one doesn't exist I apologize for being misleading but the original post made it sounds like you knew of one.
We're not ready to support that plugin, sorry. If you'd like to have a variation of that plugin created for your site, I can have sales contact you.
There's not currently a way to let any members insert script into posts. We have something in the works, but it's not ready for deployment yet. When it goes live, it will show up in your plugins list or we'll notify you. It may be a while yet, though.
Comments
http://vanillaforums.org/addon/poll-plugin
It may need to be looked over for approval. Is there a generic plugin to allow moderators and up to insert javascript into a post?
There's not currently a way to let any members insert script into posts. We have something in the works, but it's not ready for deployment yet. When it goes live, it will show up in your plugins list or we'll notify you. It may be a while yet, though.