Almost everyone who comes from Sorbonne will state that Sorbonne is the best Law School in France and vice versa in case of Assas students.

But my Professor ,a Thai student from Nice(Licence) and Normandie(Maitrise),, CampusFrance Staff or
even a Thai students in France(Eiffel Scholarship awarded - (Aix-Marseille III)) say that every university in France has the same quality because they have no ranking at all therefore "study at anywhere being the same" Is this statement real in the viewpoint of French people or even in other countries?

I have to ask such a question above because I yearn for studying in a university of highest caliber in France and absolutely it will be Paris but still hesitate to choose between Paris I and II

Also, I really want an objective view not with a bias.

Can't give you a direct answer but there are some law schools in France which are better than others, these two are right up there, but you should also look at Jean Moulin Lyon III

Oh, I forgot it completely that even a Thai student in Sorbonne had said like the above mentioned statement!

Although I will never believe her unless go for studying in Sorbonne by myself.

The syllabus may be similar for the undergraduate degrees, but the LLM syllabus is very different between the Sorbonne and Assas. I attended the Sorbonne for the LLM. An OK degree to improve your French and the placement helped with finding a job.

Sorbonne Assas Paris 1 have the most famous alumni.