What are the pros and cons of working in USA/Canada/UK as a doctor?

Speaking for the USMLE (that's the one I've taken all 3 steps in), there are tonnes of prep books and study programs available. Once you take Steps 1 and 2, and get a decent score, there are many residency spots available for qualified foreign medical graduates (FMGs).

Once you finish residency as an FMG, depending on which visa got you here, the way to stay in the U.S. medical system working, is to go to an underserved area (inner city, rural community, VA hospital) and work there. In the meantime, you can work on green card paperwork and permanent residency, which will allow you to work anywhere.

In terms of the environment of U.S. medicine, there is a great fear of litigation (lawsuits) which makes medicine a little bit overexhaustive and has emphasis on overdocumentation and paperwork. There are few restrictions to the lenght of time and the intensity of care patients get.

Canada and the UK have more socialized medicine systems, where there are restrictions to the type of care people get (less ICU care, less dialysis), and wagewise, physicians make relatively less than US physicians, since many are salaried.

There have been new laws just released in the UK concerning international medical graduates coming over to work. Basically, even if you pass your PLAB, and you are applying for a job, if a British/European person is applying for the same job, he automatically gets over you in the priority list.

With the ratios of applicants to job being as high as 200:1 in the UK, I suggest you look gor greener pastures in Canada or Australia or the US

of the 3 Canada is the worst. Canada's national helathcare lacks funding and accordingly lacks in research and development. Being privately funded the US healthcare system is better than the other two for patients and doctors. With more money there is better pay and excessively more research and development going on. Also, you don't have to worry about running out of funding around December which has happened in Canada before. Capitalism is better for doctors than socialism, what else is new.