Hey mpittman, what did you finally deceide? Maybe we will meet on friday. I am one of the students of the Vienna MA. I do know that both Master Programs are well connected to each other and share one field trip to Kosovo together. Here is a great project, which developed from these two master programs www.uhrsn.org (i contributed to it as well).
I personally believe that especially for non-lawyers a two years study is beneficial. The studying period in both programs is quite challenging and the time is hardly enough to familiarize with the legal terminology as a non-lawyer. The lecturers of both programs are great. I can recommend the Vienna program, but the E.MA is also a top program.
The Website www.uhrsn.org will also give you an overview of the papers, which are produced in these programs, as it facilitates a student publication database. Enjoy the good read! And please connect to us, if you have any questions. I am totally sure somebody will reply.