Some people such as ColinWright post many influential articles.
Others such as Grellas [average comment score 38.8] are known for authoritative comments in their areas of expertise.
The most influential poster is PG.
So, maybe you should define "influence".
* How would you measure that?
* How would you get everyone to agree?
which get submitted here (in my opinion some of the most insightful comments posted on HN are from his blog).