You should believe that Page rank is also influential factor for ranking as you believe that link is the most important factor because page rank is directly dependent on number and quality for links. I think you are thinking this because Google is not updating pr often and you see less pr websites ranking high and that is because their content and anchor text of links are more relevant, but still Google has not updated pr.

Increasing pagerank
 

Having done some research on the Internet it has become clear that Page rank is primarily a result of gaining sufficient backlinks.

Preferrably these backlinks also should be of high quality, although the sheer number of the backlinks is also important.

page rank is provided google.

depends what you want. I have website with PR 1 and it's on the first site in Google :)

yes!!!!! PageRank is a way of measuring the importance of website pages...

page rank is very important to improve your website

Page rank and domain authority rule your search engine rankings

Page rank is provide by google. Page Rank is most important for site. It play most important role for site.