backlink - to sep pages or url variables to same?

[newreality]

Which is better, to enhance PR value of the site overall-- having sites that link to seperate folder pages (where only a single page exists per user):
page.com/folder/Asite.php
page.com/folder/Bsite.php
etc.,

OR, where all sites link to the same page within the the folder:

page.com/folder/Asite.php?company=Asite (where asite is used as a GET variable to pull values,
another would be '?company=Bsite' )

In both cases, the pages may not have much unique content at all.

[Conservative]

I'm guessing
page.com/folder/Asite.php?company=xxx

is probably the better option, as you'll at leat be telling the search engines that the page is one and the same or very similar.

Why would you want to create different files if there is no unique content that sets them apart?
Is this for affiliates linking to you ?

[newreality]

It's for a web calendar -- where organizations link to my site to pull up their calendar, and would be nice to get link value from.

Uniqueness of content will be determined by url variable only, depending on the current month/variable extension on the url.

I've seen sites have thousands of backlinks for url extensions. But I don't know if these are acquired by serachbox or drop menu.

Want to make sure the setup is right.