I don't specifically know about the universities, but the university of Paris-Sorbonne is a big name. Now that I've researched it, Panthéon-Sorbonne is a different university, but it would look good on your CV and impress people who don't do the research
You would need to get more precise titles to compare directly, because the titles given don't correspond with the names of the new degrees under the Bologna system. See
http://en.wikipedia.org/wiki/Bologna_process