I applied online. The process took 5 days. I interviewed at PwC (Houston, TX) in Sep 2012
Interview
The process was relatively simple, with 4 rounds of interviews ranging from different managers, human resources representative and the partner. The questions are very conversational in style and generally very casual environment
I applied through a recruiter. The process took 4 weeks. I interviewed at PwC
Interview
The interview process consisted of a phone interview with a recruiter that worked with PwC, and then had another phone screen with a director. Next we had in-person interview with managing director, and partner of the practice. The interview process was standard
I applied through college or university. The process took 3 weeks. I interviewed at PwC (New York, NY)
Interview
Two behavioral interviews on campus with Managers, then final rounds at the New York office; one case and one behavioral interview with Managers, then one behavioral with a Partner.
I believe they are switching the format so that cases will be in the first round, and final rounds will only be behavioral. Advice is to be friendly but do make sure you show your business acumen during the case interview.