I applied online. The process took 2 months. I interviewed at EY (Dubai) in Jun 2011
Interview
Applied online after which i waited for confirmation and process information from HR. This lead to writing knowledge exams, with one set online, while the other set in person along with a case exam. Then there was a panel interview.
I applied through college or university. The process took 1 day. I interviewed at EY (New York, NY) in Nov 2011
Interview
Very similar to the other big four. I had an excellent experience, all the people I met were great. I was flown out, put up in a hotel, and compensated for my expenses. The interview consisted of a information session, two interviews, and a lunch.