I think maybe my query was unclear although the answers so far are good. I'll try another way,
Say I have a website A and 2 other websites link to it, websites B and C.
Ok so ignoring all factors such as PR, incoming and out going links etc as both sites are exactly the same.
If website B is just 10 pages
if website C is 10,000 pages
the link to my website A is sitewide link on both.
Is the link from website C more valuable as it has more pages?
Hope this is more clear
