I use Wordpress but for a short time I had another blog with Blogger. I thought using it might encourage me to convert to using it - it didn't. It was toted as being very easy to use, and it was, but it seemed to be miisng a lot of features I was using in wordpress. Now this was a couple of years ago, so much has happened since then.
As a wordpress user, and blog reader/commenter I have to say blogger is the most annoying to comment on. I definitely like the Typepad comment setup and of course it's easy for me to comment on wordpress blogs.
I'm completely clueless on customizing my blog, but I do like looking thru my stats and the basic system can tell me more than I ever thought I'd need to know. And I've never had a problem with spam, never, ever.
If you find any tuts on customizing WP I'd love to know about it. I'm sure it's not that hard but I seem to always miss the vital key in understanding how to make it work for me.