One site has PR3 but no Alexa ranking another site has PR2 with an Alexa ranking of about 7,500,000. Which is the better site? How much would you pay for each? (Neither is for sale).
PR is basing on your extra links number, and Alexa ranking is basing on your traffic. So I will always buy good Alexa ranking. In addtion, I have Alexa Top 100,000 Sites List. If anyone want it, please feel free to PM me.