Www PA is 29\. Http version is PA of 21\. Should I start using the WWW one?

[matt.nails]

I think I know the answer but i need to ask anyway in case i am wrong.

The www PA is 29. Http version is PA of 21. Should I start using the WWW one? A number of years ago, they hired an agency that built a ton of links to the WWW version.

I should also point out that most of the site urls are for the http, so i would have to redirect all the other pages.

Advice?

Thanks,

Nails

[GastonRiera]

Hi Matt!

Short answer: as long as redirection are correct, stick with the chosen version (non-www). Don't change from time to time, Google does not like that you are changing too much. PA and DA will be transferred

This is a business/company decision, where there should be decided to go with www or non-www version of the web. 
In SEO perspective, there is no difference. 
Also, keep in mind that PA, DA or any other private metric are only a measure and a guess (with certain clue) how likely is a web to rank or to be compared with other similar webs.

That said, either way you decide, be sure that all redirections are set in place correctly. It could be helpful the checklist this articles:
The Website Migration Guide: SEO Strategy, Process, & Checklist - Moz blog
A site migration SEO checklist: Don’t lose traffic - SearchEngineLand
SEO Site Migration Checklist: How to migrate your website and not kill your SEO efforts - GetCredo

Hope it helps.
Best Luck.
GR