The perfect link

We all know that a perfect link would be from a site with high PR. That's the simple answer. So let's look at a few other aspect of the perfect link.

It should offer some benefit to the person that is clicking on the link. So in should be industry specific or related.
It should include the targeted keyword phrase related to the site that it is pointed to in the anchor.
That links should be "Do Follow" thus it will pass link juice.
It certainly would be nice if that link came from a high PR page.

What’s your perfect link?