I vote for Rapid Review path. I didn't use it during the semester, but as I was reading it for boards, I was wishing I had. Not really to memorize everything but just to get familiar w/ the format. It's definitely not vital, in my opinion, to read it during the semester, but maybe if you have time to take a look at it at least a little as you go through, it would probably make going back over it easier. I also looked at brs path and kaplan path, and I thought brs was also good but it didn't have color pictures like RR did, which I liked. Kaplan path is really not very good, in my opinion. Also, if you have the goljan lectures, you can use them with the book and they follow along pretty closely (although the book has extra stuff, as you'd expect).
I haven't gotten my scores back, but basically read it twice and listened to the lectures once, only before my test rather than during the semester. I thought it was helpful, although truthfully, I didn't have THAT many q's on the test that specifically goljan was useful for. That seems to be the exception to the rule, but I think it really helped solidify some concepts before third year, even if they weren't specifically tested on the boards.