Very advanced polls. See their site for detailed demos. No ads at all. Variety of scripts. Offers an UltraBoard discussion forum.
Demos are here .
See their sample board . CGIfreebies 22 average very Good message board, guestbook, etc. Complete control over the HTML portion of pages, so it can integrate into any site. Cut and Paste Scripts 12 average somewhat Guest book, poll, mailing list, form processing, counter, etc. Demos links are on their front page.