It totally depends on the power of the page and how many outbound links that page has. You'll find it much better to have a link from a PR 1 page that has NO other outbound links than you will from a PR 3 link with 50 outbounds.
Google assigns a 'power' to each page on your website fyi, it's completely based on how many people link to that page hence why people prefer links from homepages (because they're most likely to be linked to)
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