timothycosulich, I should admit I was not expected a fast question back to me
Out of objective measures and rankings that place an important gap between the 2 schools, the most differientiative aspect is probably the spirit.
With 100 participants an intake and 4 months more than INSEAD, HEC brings a particular environment for its participants
... I'm convinced that this spirit is that of a huge family and that it is present in all people from this school. It's true for the staff, for the students and for the alumni, of course
It's really depending on who u are and what u are looking for in order to develop all your potential. On these questions, I have already my answers.
... and HEC would play, if admitted, the major role in it
Hope that it answers on some of your questions