I applied through university. The process took 2 weeks. I interviewed at Oliver Wyman (New York, NY) in Feb 2012
Interview
Friendly and very thorough interview process. But if you mess up once it really counts even if you recover. They also try to stress you out a bit during the fit interview. But don't panic.
First behavioral interview super annoying that it is 3 at once. Typical tell me about yourself and why oliver wyman. The interviewer seemed like already made up the decision and it was very uncomfortable to undergo the interview.
Did not recieve a callback.
There was an online assessment which tested mostly mental math and reading graphs. Then, there was a 30 minute case interview and a 30 minute behavioral. Fairly straightforward and standard, with the case being easier than average.
Interview questions [1]
Question 1
Standard behaviorals -- why OW, tell me about a time when ___
after application I have been contacted for the interview after a couple of weeks, had to do two online interviews that consisted in case studies plus some behavioural questions, the two interviews were held on different days