However, going back to the previous discussion of the European 5/6-yr from HS graduation vs. the US bacc.+4-yr system, I think it's really hard to argue that there's solid and significant differences, that would render either system superior to the other. I've trained 20-yr old European students who were responsible and mature, and I've taught 24-yr olds at a top-15 US medical school, where I had to remind students that they were in medical school, not cosmetic school, and that they should at least try to act in a mature way.
However, it's interesting to see that the US model is increasingly being accepted and implemented, at least in part, in Europe. One country after another is introducing PBL and multiple-choice exams, rather than the previous systemic approach and oral/essay type exams. So at the end of the day, it's not unlikely that most med students in the western world would ultimately be trained on an essentially US-based system.