Both are just metrics that don't have huge significance IMO. Alexa Rank is based on the number of people who come to your site with a specific alexa toolbar installed in their browser - so itsn't a great indication of a site's traffic as it's based on a small cross-section of (probably more tech-savvy) web users. And Page rank is based on Google's page rank metric (but isn't kept as up-to-date as their internal rank) which is just one of hundreds of signals Google uses to rank a website in it's search engine results. A better metric to use would be SEOmoz's Page authority and domain authority, or alternatively, just measure your web stats, conversion rates and sales etc - this is what should really be driving your developments.

I would say, website traffic is more useful than alexa or PR..

thank for givnig the answer

Page rank should be the highest and Alexa should be lowest.

Alexa rank is mainly asked by advertisers before advertising on your website where as good page rank can also give boost while getting advertisements for your website.

I think both are needed at some point.
I would go with page rank to be honest

In my opinion, the most essential thing is alexa rank, because it tells us the proper value of any website. But I think very little amount of people took care about alexa rank. So my advice is to take care of alexa rank of your site, because it will also assist you to get some good sales, as alexa means more visitors then more ad sales, which will always increase your site value.

I am using for many years seo Quake i sure that seo quake is better then Alexa and other toolbar i prefer you a good tools for the future use and enjoy.

Originally Posted by victorc

I would say, website traffic is more useful than alexa or PR..

You are right traffic has importance but for me Keyword ranking has more importance. It fetches traffics that can be converted into leads.