Okay i am posting few links that I have found across google with the whole ScPo vs LSE.
http://www.topuniversities.com/student-info/choosing-university/lse-or-sciences-po
http://talk.collegeconfidential.com/graduate-school/179503-sciences-po-paris-vs-lse-help.html
http://www.thestudentroom.co.uk/showthread.php?t=196145
http://www.urch.com/forums/phd-economics/131244-decision-tse-pse-sciences-po-polytechnique-oxford-geneva.html