I think the 1 liner answer to your question is "it depends upon your project specs and the allocated budget"

My major specialty is SEO. And for all of my clients, I'm responsible to keep their websites 100% user friendly and hence search engine friendly too.

So based on my 5 years of experience (at oDesk.com) I'd strongly recommend you go after Wordpress. It has several reasons!

Let me share an amazing reason here-under:

"Once I've heard from a big Internet Marketing name, that using Wordpress as a CMS is one of the 200 rankings signals that Google uses to estimate a website's rank"

We can't blindly say it's true or it's false, but it makes sense when we focus on a main Google's guidelines. Google recommends using a CMS that's easy to use/manage.

As you're going to share news mostly, so it'l cost you much to upload your content, as every time either you've to hire someone for that, or pay for some online course to learn that CMS. Means a lot of tensions!

In wordpress, to manage a lot of the things, most of the plugins are free and easy to use. Just chose a best template for your niche and hire a designer/developer for one time project to make your desired layouts.

Run free tools like GTMetrix.com to optimize the website speed. There are some plugins as well.

But while using wordpress, pay a lot of the attention on your website's security. Wordpress websites are often hacked.

Feel free contacting me to know more about it!

Have a nice time!