Michigan definitely has the best reputation for stat genetics, which is largely based upon Mike Boehnke and Goncalo Abecasis's reputation. Their trainees have got faculty positions at places like Harvard, UPenn, and Emory etc. That is mostly when genome-wide association studies were hot. But now that the field has already moved on to newer technologies, traditional stat genetics is no longer that attractive. In fact, their recent trainees can hardly get faculty positions. Now that Goncalo Abecasis is going to industry and Mike Boehnke is close to the age of retirement, I am not sure that Michigan's other stat genetics faculty are necessarily stronger than other places.