Well, you could try out the page strength tool on Seomoz:
http://www.seomoz.org/page-strength
I think this will give you a better idea of the data you're looking for, though I'd tend to agree that there's probably better things to spend your time on.
As per the description on the above website, it "quickly assess a site/page's relative importance and visibility".
I think this is one of the better "link value" tools I've come across, but I don't use them myself.
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