One frequent complaint that I see is that every question is mandatory, which forces members to add a "not applicable" option when they have multiple questions.
The poll title is a waste of time, given that there's already a topic title and poll question title
I think it would be really neat if polls were attached to posts rather than to topics - that would force people to actually read the first post before answering the poll, and would allow for people to add polls in replies (and other places such as status updates) too