I'd also like to flesh out a key thing EGOL said and that Joe touched on.
"personally don't worry about linkjuice. I just link out as it meets the needs of my content and my visitors."
In my experience, if you are spending any significant amount of time on trying to figure how to pass more or less link juice from a particular area or page of your site, you are more than likely expending energy that could be used much more effectively if it's directed toward developing more content, more inbound links, social mentions, or any number of other high priority tasks.
The return on investment of evaluating link juice distribution in a way like you've described is unbelievably minor at best. And in fact, unless you have the capacity, time, and energy to do true A/B testing on a dozen or more specific sub-factors related to that link value passing, you wouldn't even come close to being half accurate in your evaluation.
Sure, it's a great exercise, and could be fascinating to write an SEO article about. But that's really about it.