I'm personally really picky where I would allow my link juice to go from my strongest page (Home Page). I would make sure to pass my link juice to the most important pages, and not waste it on any page that won't benefit the search engines or user right away.
When practiced, this would look like a menu bar with no drop downs, only links pointing to my important pages within content and only important links in the footer. This not only funnels your visitors the way you want, but it also spreads the link juice the way you want.
Another reason to do what I had described is usability. Although people manage to function well on most sites, it has been shown that fewer options leads to better results. You don't want your visitors to have to debate on what's the best way to go, you just want them to click forward.
Anyway, here is my favorite navigation example: http://www.telegraph.co.uk/news/
I like how the refinement is under the menu, but this is just my own personal preference with no data/examples or anything backing it up.