Thanks for the feedback all - my first article so it's certainly a learning experience.
I haven't had a chance to play with 2014 yet - hopefully getting to that in the next few weeks - so I had not yet had the opportunity to test it out in that regard.
Divine - yes you can garner this sort of information from activity monitor but I wanted to present the reader with an understanding of what the blocking chain is and how it appears under the covers of SQL server. In my experience using the DMV's allows a DBA to better customize their administration experience as well as develops a better understanding of what is happening rather than using a pointy clicky gui interface.
In any regard to all I definitely appreciate the feedback and hopefully will be able to write another article soon!