[shoaib Marfatiy]

Both are important.

Focusing on your sites’ SERP does give you the advantage of having to drive traffic to your site based on the rankings you have. If you are able to reach rank one on page one of Google for a very difficult keyword then you have a huge advantage of getting traffic, where as we know traffic also equates to your websites’ possible revenue. As for page rank we believe that this is a strong ranking factor which means that in order to push your site further up the SERP ranking for Google it would be necessary to also increase your websites’ page rank, however SERP should be of your primary concern and if you do that you would automatically put your Page Rank into one of your sub-priorities.