I think it boils down to whether or not to use categories in addition to the post title.
Personally, I don't use categories. I like direct URLS where it's URL.com/post-title
This is something I've never tested, just kind of intuited(wtf this is a word?), so it really is just preference and what I like to see...But I've always had an inkling of a feeling that a smart use of categories would propel a site beyond another site with just a title in the URL. I just have no idea how to test this, considering I still have no idea how to correctly use them for an added benefit over keyword titles. Perhaps use EMDs as the category names in your niche, but don't backlink heavily to a single EMD category, which would mean creating a bunch of niche targeted EMD categories?