IB Cultures In Different Countries

I've been wondering for a while what the overarching cultural differences (including firm specific) were between different countries. Can anyone enlighten me and other prospective bankers?

I'm located in the Asia Pacific region, and from my observations and conversations with bankers, they all seem to really enjoy their work and spending time with colleagues. For example, I had an interview with a MD at a BB in Sydney who described himself as the 'friendliest guy on the floor', and he pitched to me the genuinely warm culture of the firm. He backed this statement up by emphasising that most bankers had been at this firm for over a decade, with very few moving.

This of course leads me to wonder how much of this is true, since obviously no one would reveal any horrors to students. Also, how much of the ripping into analysts for screwing up a chart to pulling off Hermes ties situations are accurate?

Has anyone worked in multiple regions? I'd love to hear your discussions below.