In your opinion which of the 3 has the worst WLB and culture
As a junior probably IB - the hours are terrible
I would agree that IB probably has the longest hours (potentially PE as well). But you also have to take into account the nature of the work. For example, S&T has a very early start and is very intense the entire time where you are tied to your desk for the most part. This would also depend on what you would consider “bad” culture.