I think something has to be done about this feature. The top comments haven't changed in years. Everyone ignores this section now.
It is impossible for any new comment to catch up because the attention that this feature draws to the comments also attracts more votes. There should be a time limit for the comments that appear on that top list, so they can make place for new comments. Or pick the best comments for a certain period of time. Maybe the best comment of the past week or month, this way figuring on this top list doesn't give it an unfair advantage over other comments it "competes against".