If you’re familiar with Google’s PageRank, you know that a PageRank of 10 is the ultimate accomplishment for a web site. Here is a list of sites with a Pagerank of 10 to fuel your aspirations.
Incidentally, I saw StatCounter in the list and looked at their service to see why it was so popular. They offer free stats with invisible counters and a relatively complete selection of statistics with nice-looking graphs and charts.
They’re worth taking a look at, especially since they show you user paths through your site and keywords from search engines (two stats that you have to pay for using Sitemeter).