Most of the valuable info is not in poll format. You can search for posts by user, most helpful are ones with lots of experience or ones that favor fruit with similar profiles to you.
You can also use other search engines to search this site more effectively, using quotes liberally.
Try a search string like (Site:www.tropicalfruitforum.com "mango" "top 10" "flavor")
Mess with the string until you find the info you were searching for, but use of quotes is most helpful, and using the hyphen "-" before any word you want excluded from the search parameters.
Using a string like that in your favorite search engine usually returns the best results. Of course you will need to customize it with the words most important to you.