Do you have any metrics for this? I have found issues with all the data-centers. NJ seems the most problematic from experience, followed closely by Dallas, which your data does confirm.
http://uptime.cloudharmony.com
If you click on any of the Linode links, you can see when outages occurred, how long they were, and usually an explanation of the outage (if Linode provided one to me)
Dallas: 99.959% Newark: 99.971% London: 99.986% Fremont: 99.992% Atlanta: 100%
I've heard from others here that Atlanta has been a very reliable LN data center for them as well.