I don't know much about the programs specifically, but you won't be hated TOO much in Boston. You will be ridiculed a bit, but that's par for the course!
Anyway, I know from interviewing at Finch for med school that a large % of their master's students (post-bacc) get in to CMS or another school (usually CMS, though). But, the program is tough and you have to maintain a high average (3.5 I think). As for MCP, they kept sending me info on the IMS program after they rejected me, but I threw it out before reading it. As for BU, I know someone who started the post-bacc program there, but don't know what became of him (he was my now ex-boyfriend's best friend). I think he liked it, though. Guess I'm not much help.
Anyway, from what people told me, you should look not only at the program, but what medical schools it is affiliated with (i.e., where they send the majority of their graduates). Sorry I could not be of more help, but maybe by answering with little information someone will be irked and give you some accurate info. Good luck!
