I've tried Wordpress, Typepad, and Blogger, and for my very simplistic needs, Blogger won hands down. I found the others to be rather cumbersome. I did manage to reformat it to three columns for my work-related blog, and that took some recoding, but it was mostly cutting and pasting from an FAQ entry.

None seemed to have automatic three column format, which is what I was looking for.

Sounds like you, Pardes, have much more sophisticated blogging needs than I do, so take what I write with a grain of salt.