I love looking through other people's codes and see how they style their comments, most people use a mix of * and ////, and of course it all depends on the language, but I have definitely seen some good ways to comment and some bad ways. A coded page can really come together with the right commenting structure and make it really easy to read for someone coming into a project without any knowledge.
I am curious to see what people think are the best way to style comments, section divisions, etc. This could be for html, php, or anything else really.