Best practice for setting up WP as a CMS?

Hi,

I’ve been using WP for a while now, setting up people with it as a basic CMS as opposed to a blogging platform (let’s not get into the definitions of what a CMS is here please). I tend to make ALL the individual webpages as ‘pages’ not ‘posts’ when I do so and use wp_list_pages(); to display the nav as a nested list.

However, I’m wondering if it would be better to set up a nested list of categories (for the main navigation) and let users add posts (as the individual webpages) instead of pages?

How do you go about putting together your sites when your client wants to have a CMS-like system whereby they can add pages to sections and subsections?

Thanks