Bingo never mind guys, silly question, it was designed just like I was thinking it was, well its a theory, but the way search engines read websites, and from what I'm seeing this theory has to be true in every essence .
http://en.wikipedia.org/wiki/PageRank
it answered many questions, it goes by the documents, per page, so the more pages with then a website, the pr from the main page evenly gets divided through out every page.
Imagine a tree, the tree is growing several branches, each branch is smaller, but when the main root of the tree gets bigger, the branches start to get bigger, now the root is the main page, and the branches are the deep links which don't contain much pr juice, so therefore the root contains the most Google juice.
The logic with a contextual link though is that sometimes the pr might be very low on certain pages, but then again each category might carry a somewhat pr level that is passed to the individual blog post, which granted the pages are relevant, but typically higher pr blog posts are the best, and the main page links are the best.