Peter,I am in the same boat as you; but on the undergraduate level.I will start in MC most probably.1. 140K in NY/London is the same as 95K in Dallas, Lisbon, etcetera... (That said, I think GS pays more including bonuses.)2. From what people tell me IB at undergrad level should be avoided at all cost. There are limits to slavery. Post-MBA IB may be worth it.3. BCG and Bain care more about work/life balance than McKinsey does.Good luck. And btw, you can not go wrong as long as you stay within first tier in either IB or MC.