Depends on what you want to do with your website.
I have used several CMS's
Textpattern
CMS Made Simple
SPIP
Xaraya
Mambo
Drupal
Right now I am just experimenting with Xaraya, and tend to lean towards Textpattern, as it is fairly flexible and easy to configure. Another favorite of mine is CMS Made Simple, because it is what it says it is.
I'm definitely not a fan of Mambo, or sites made with Mambo. They all are starting to look the same (and I guess that goes with Joomla as well - and don't get me wrong, I am not saying that they aren't quality coded and usable applications, they just don't fit to my taste).
I was looking at newspaper and magazine website publishing with SPIP, but I haven't taken the necessary time to get into it too deeply.
I have also started to work with Campsite, which I will be configuring with seo friendly URL's as a complete news portal.
Textpattern
Can be used for a news-ish style site or a blog. Its up to you and there are a lot of support resource sthat you can add modifications, plugins and more. Highly recommended
CMS Made Simple
I like CMS Made Simple because of its simplicity. But don't think of it as just that. You can add on modifications to it as well from the CMS Made Simple Repository.
I hoep that was informative - but remember, its purely opinion
-Steve