I truly agree with you on that what matters most is our own ability. Besides, as far as I know, Cornell enjoys a nice placement mainly because the Director Victoria tries to put the students in risk-related departments in Citi-Bank. Pay attention, risk-related departments not S & T or hedge funds! So if you are interested in risk management, let's vote for Cornell. If you are interested in front office positions, I believe Columbia will have advantages due to the name, the alumni network, the location and so on. Last thing to say, don't rely too much on others like career service, focus on the improvement of your hard skills and interpersonal skills.