IIT Guwahati Vs IIT Madras

I have given Indian Institute of Technology Joint Entrance Exam (IIT JEE) Main 2015 and I got 167 marks in it . So I am selected for advance . Now I have to register for JEE Advance . But I am confuse which IIT should I fill in registration form (IIT Guwahati or IIT Madras) ? Please provide me result and placement record between IIT Guwahati Vs IIT Madras so I will get idea from it about best IIT from both of them .