Shrug. I'm not trying to denigrate Conservative blogs, merely to point out that the open nature of Liberal ones has lead to a huge increase in traffic, to the point where they recieve far more hits in the upper end cases.
I went to yer link, Nimh, and I believe that the ranking based upon how many OTHER sites link to your site is unfairly biased towards Conservatives, especially when you look at the nature of their sites and how they handle comments/linking.
For example, I can visit, say, Booman Tribune and not only read what the resident pundits have to say, but individual diaries and stories from hundreds if not thousands of their members. This leads to far less external linking as a majority of information instead begins to be handled in-house.
if you look at the stats on the site you listed to as a ranking of daily hits, and not of how many sites link to it, the results are different:
http://www.truthlaidbear.com/TrafficRanking.php
The top five Conservative blogs, in terms of daily hits, are Instapundit, Little Green Footballs, Powerline, Michelle Malkin, and Andrew Sullivan. Out of those 5, only LGF allows comments.
Therefore it is quite obvious that the highest-ranked blogs, in terms of daily hits, on the conservative end do not allow comments and certainly don't diares, for the most part.
An example of how much the left-wing blogs have pulled ahead?
Combined totals of the above-mentioned blogs for daily visits:
372,107 visits daily.
Total number of daily visits for Dailykos ALONE:
428,619
Cycloptichorn