I've been using active meter for several weeks, and it has yet to be the same as the WP stats on hits. I've been letting things run for a while so that the time differences would be less obvious and sort of even out. I run a Mac, and use Firefox for my site admin and such, and use Safari for normal browsing. Tonight was the first time I had noticed that when I went to my site with Safari (not logged in) that it counted my visits, which could account for some of the discrepancies between WP and active meter. If you have your homepage set to your blog, as I do, I would suggest staying logged in all day and that way you aren't skewing your hits.
Dr mike or RC or someone else at WP, is there any way that you guys could use a cookie so that when we are not logged in, our visits will not be counted?
Just wondering. Now that I know this skews my results, I've changed my homepage and will not visit my site with a browser that is not logged in.