Many designers assume that center or right aligning their website logo will make their brand more memorable. Research has shown this assumption is not true.
Users rely on navigation bars to find information they need. If your navigation button labels and states aren't clear, they'll have trouble navigating.
Years ago it was common practice to place a link to your sitemap in the footer navigation. Those days are over because the footer has become the new site map.
Is the user interface an extension of the user or a separate entity that speaks to the user? This is a question designers need to answer when labeling their menu items.