Having gone through the whole residency interview process, you BETTER BELIEVE that a US grad with a 210 will be HANDS-DOWN favored over the IMG with a 240!~ Some residency programs do NOT even INTERVIEW IMG's even if their score is 260+. I know of a few in Cali as a matter of fact. If you think a good USMLE score will make up for not being a US allo, you are TRULY TRULY mistaken. Like I said before, it's all about WHERE u want to end up doing residency. Sure, if you want to be in NY then maybe caribbean is okay, but if ur trying to get to Cali, it's NOT easy.
Also, don't try to put up match stats because u need to look at the sheer VOLUME of students that graduate from the caribb schools compared to DO schools and look at how many don't even match at all! sure, a few ppl out of 750 grads can get a gen surg spot at 'x' location but is that really a good ratio of ppl?