Being within a line of site to the WTC, and seeing the towers everyday until they fell, I think they should be rebuilt.
One of the problems may be getting tenants and employees that are willing to go back!
Whatever the final decission will be, we are all going to have to accept it.
I can look back on the photo of my wife and myself with the towers in the backround (taken at the immigrant wall of Ellis Island)
and have fond memories of the "good days)