agree with all above - know your application. Also, I thought that by doing a rotation on the East Coast would increase my number of interview offers from high-level schools there (I am not from the region but competitive for those spots). It may for some, but that was not the case for me. Since you are asking though, here are some places that I heard from many people were great rotations on the East Coast:
HSS - does not interview all rotators (50-70% of them) but everyone I spoke to had a great experience there (plus you do not take call according to several sources I spoke to)
Harvard - same as above
Columbia - interviews 50-60% of rotators, heard mixed feelings about their experience, Dr. Levine is a great medical student/resident advocate
NYU - have heard great things about the rotation for a medical student, they do not interview all of their rotators, but they take 90-100% rotators as residents every year
I agree you should not choose rotations solely on whether they interview everyone or not, but I would definitely consider it as a factor. I met several people with very solid applications and great interviews that spent a month on a rotation, worked hard, and really enjoyed it (CMC, Utah, NYU all come to mind) but did not receive an interview