Mathemagenic

Still in a questioning mode :) A friend asks:

I have used Blogger for a while, but the blog is almost dead now. One of the things preventing me from putting more time in it is that a Blogger blog (the free version) is hard to organize and searchable. It is a long list of postings. I would like something with more navigation options (like channels or categories). Also, every time I put new features (blogroll, statistics, comments etc) into the Blogger htmlcode, the blog showed display errors, like showing the dates in scriptform, instead of normal writing. So I was not impressed with the quality of Blogger.

I need something that is more stable (no script errors), is managable in channels, as in informationwebsites, so that I can show people an easy way to different themes (not everyone wants to know about China....), and may be with a minimum set of standard features. Also, I want minimal tampering with code, and do not want to run my own server. So I am basically looking for a hybrid form or a managed site with easy posting facilities...

What would your pick be?