I have no statistics to prove a point... however, I now many Carib. grads who are practicing in US now.
It should be clear to everyone considering offshore MD schools that when it comes to residency, a US graduate will take precedence. There are no ifs or buts about it. Also your chances depend on what type of residency you are looking for - derm, rad, neurosurg and some other ones are out of the picture and I know everyone knew or heard of this guy or that girl but a few in a thousand graduates makes nothing but school advertisement and no real reality. Internal and Family are not competitive so most FMGs gravitate toward them as you can tell by a quick look at the Match results on the major schools.
Another factor is the school you go to - there are a handfull of acredited ones and even among those, even fewer with a 20+ year track record. If some students fall victim of advertising and end up in ghost schools and diploma mills than thier applications will be looked upon with great suspicion or straight out declined.
On the bright side, there are thousands that enroll and graduate each year form Caribbean and other foreign schools, so I find it hard to believe that if you couldn't get a "doctor job" or it would be very hard, all of them would pay gigantic loans for a piece of paper and just to claim I am a doctor while flipping burgers... I have yet to meet someone that says "I graduated from Carib. med school and now I'm working for UPS" or something like that...
From what I've seen here and elsewhere here is the consensus:
1. Be positive and make sure MD is what you want
2. DO your research and try to get in to the school that gives you the best chances as far as preparation, quality of life, accreditation, finances and networking
3. Be realistic and adjust your expectations accordingly - is better when you exceed them then crashing in despair
4. Be agressive - it will be a tough world every day in medicine, so if you know a specialty you like to go into, if you know the area you like, pick up the phone or go places and ask the program directors of those institutions what they think of FMGs, Carib graduates, the applicant stats and so on. The more you ask, the better idea you you'll have and the more informed your decision will be.
5. Realize that all of us that are populating the islands and immigrating in the world to get MDs that we couldn't get in US, screwd up one way or another; if we did things the right way we'd all be in Harvard and J.Hop. getting the best medical education available to man. So in order to overcome our shortcomings, we now have to suffer some more, do more work and knock more doors, study harder and maybe even tell mom and dad that the Nobel winning brain surgeon of a daughter or son they expceted is not going to happen - insted you may be a geriatrist or pediatrition, internist like many.
6. And lastly, don't make the mistake most do! Listen to yourself first and than others - after all no one knows who you are and what you want better than yourself and let that be the primary guiding light.
Good luck!