In order of usefullness (so far):
biochem>=pharm>>BSP>physio>>>>>>>>the rest.
Biochem is really well done. I recommend it over RR every chance I get. Pharm is excellent, assuming you can watch the lectures with Raymon. BSP with the lectures are also good, and I recommend that (although I think the HY book is written by the same author).
Physio is good, not great. I'm considering using BRS instead. The physio lectures I watched were also good not great. Path I would steer clear of, except the new one had some nice pictures for review. Immuno/micro is ok, lectures were ok. New version is in color, and I know some people love that but CMMRS is a better book at the moment. Anatomy + neuro, ok book (just seems like this is the toughest for the review companies to do well, kaplan has one of the better ones).