Links to external resources are encouraged, but not required.
Upvote useful answers. Downvote answers that are not useful. A useful answer is an answer that will help not just the asker but also anyone who might come across the question in a site or Google search.
It's fine to improve someone's answer by adding links to useful external resources.
Have a go with http://data.stackexchange.com/english/query/100870/comments-with-score
It relies on SEDE, which is not quite up to date, but may provide at least most of what you're looking for. There are refinements which you may like to make, for example ordering by comment score instead of date/time.
I found that my top-voted comment has 38 votes.