Rather than a poll, I originally thought of a list. The problem with anything like this is that everyone has their own opinion on what's a good product. eg tyre dressing - some like glossy, some like a matte finish. Everything in detailing is very subjective and so every product could have lots of "yes" and lots of "no".
A list of products used by the forumites would be better as it allows people to see what others are using. Some will be happy with autoglym products, others want boutique range things.
Surely, the best wax is the one that costs £10,000?