something worth knowing about university of chicago is that they don't automatically interview rotators, unlike many other places. I met several people on the interview trail who seemed like nice, cool people but complained that they worked there butt off at UofC and still didn't get an interview.
Other places in the Chi will at least offer you an interview if you rotate, usually, though i have a friend who rotated at NU and didn't get an interview. They told him that they almost exclusively interviewed rotators this year and that they had too many rotators to interview all of them.
Just some food for thought, by no means is this gospel, just thought it would be good to know when selecting aways.