I would agree with Bambi.
I currently am a 4th year medical student at University of Birmingham, England. Grew up in Canada, did my BSc in Ontario, then decided to do meds in the UK since I'm a British citizen.
Anyways, I'm keen on doing residency in U.S, so last couple summers I have worked in hospitals in North America (Toronto, Johns Hopkins, Jefferson Philly and UPenn). At Hopkins I did neurosurgery and orthopedics, UPenn was Thoracic surgery and Jefferson was Neurology and Rad Onc).
In Toronto I did Med Onc, and Clinical Onc research for a summer.
And next year I'll be doing 4 months of electives at UMass/Mt. Sinai NYC.
So I'm quite experienced in healthcare in all 3 countries.
American medical students are very WEAK clinically. Brits are definitly stronger medical students from a clinical standpoint. However, pre-clinically (so 1st 2 years of meds), the Americans are stronger cause they have to do Step 1 (Brits have no such standardized exam at that stage).
So pre-clinically Americans > British, but for clerkship Brits > Americans.
And I've been scrubbing in since my 3rd year, assisting in the theatre. And my GSurg proper rotation isn't even until 5th year, but I've already scrubbed in on several cases.
But when it comes to post-graduate training (ie, residency vs. F1/Registrar), America is superior just because docs in the U.S work like dogs compared to British docs. And yes, private health care trumps NHS when it comes to procedures, etc.
For example, last summer at UPenn, 4th year student asked me (just finished my 2nd year) how to do a proper patella reflex....and she was interested in a Neurology residency....I was shocked. And this is UPenn, top 10 I reckon?
U.S is great, I will admit, but a lot of it is hype. When I was at Hopkins, don't get me wrong, they know what they are doing, but it wasnt as amazing as I thought it would be (considering they have tv shows like Hopkins 24/7, and shows about Benjamin Carson, etc.).
One thing I noticed about American students is that they know a lot about random, rare stuff that no one really cares about. I mean honestly, I'm glad you know how many strains of S.Pneumonnia there are, but if you can't do a proper resp. examination then whatever.
Another way to tell that the Brits are stronger clinically are the OSCEs. Step 2 CS is a joke compared to my Birmingham OSCEs. I have never been so humbled in my life.
So in conclusion, british medical STUDENTS > American medical students, but American RESIDENTS > British residents.
Just my 2 cents,