If you are trying to build PR, the PR that is important is the PR of the page where your link appears. That is the only PR value that can be passed.
Originally Posted by logoonlinepros
The PR of a site's home page is irrelevant unless that's where your link appears.
Nonetheless, a link from a site with a PR of 9 might be good to help get a new site indexed quickly because a PR 9 site should be experiencing a lot of spider activity.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -- Benjamin Franklin