How reliable is SEOMOZ data?

[activitysuper]

I have been using the Mozbar data to locate Auth websites, basically the higher the DA/PA the better it is. If I then check the site out and they have good load times, lots of social sharing etc this makes it extra special and now a good site to try and get a link on.

I found 3 blogs to guest post on which all have DA/PA 80+ some of the blogs have a PR7.

Now this is great but what scares me is have I just wasted 3 guest posts because the data is incorrect.

These blogs are run by 1 person and the kind of work involved to achieve those stats would be very heavy.

Maybe this blogger has just hit the nail on the head with SEO and link building.

Input anyone?

[CPLDistribution]

I would think that if you are aiming for authoritative websites then the data will be fairly accurate, however, if you were looking at getting links from lower DA/PA sites then I think making comparisons could be slightly more difficult as I suspect these sites may be more likely to attract links from outside of Mozscapes index (The number of sites and pages crawled is not infinite and less popular sites may not be included).

If you haven't already it may be worth reading Rand's post on the latest Mozscape update:

http://www.seomoz.org/blog/july-mozscape-update 

Can you look at the keywords some of these sites are targeting and see how well they rank as another indicator?