Now using Disqus for comments
I have switched from Blogger comments to the DISQUS comment system. I've always disliked the Blogger system -- having to navigate away from the post -- and Disqus appears to work like other typical systems (WordPress, Moveable Type, etc.). Threaded converstaions are standard, and it's integrated into the blog page.
You can also track and follow comments, as well as rate comments to help make sure only "good" comments stay in the conversation. They also have a variety of widgets that make it easy to integrate certain features into other sections of the blog -- hopefully more on that to come.
The real draw, however? Stat porn. I have a dashboard at Disqus, and can view all comment-related statistics as well as moderate comments and users from there.
For anyone interested in trying it out, it appears to work with several of the top/popular blogging platforms: WordPress, Moveable Type, Blogger, TypePad, and Tumblr (!!).
Go for a tour and see for yourself. Pretty cool. Also, they support OpenID, so creating an account is easy-peasy.