Not sure that the decision is as difficult as this thread suggests simply because you have 3 options with distinct differences.
Are you ready to spend 2 years abroad ?
Do you want to attend a single sex school for 4 years ?
Will you be comfortable in a small, rural environment at an outstanding college ?
Based on the information shared by OP in the original post in this thread, my best guess is that it may come down to a decision between UC-Berkeley/Sciences Po versus Williams College.
P.S. I find the fourth listed “con” under UC-Berkeley Dual Degree program interesting.