I was asked what other schools I applied to and which I was interviewing at during one of my interviews. Many other interviewees had their gears grinded by the question. Sometimes adcom just want to see how you handle these types of questions. Answering the question confidently and modestly, I was able to in-return cause the interviewer to explain why I should want to attend their school the most. It felt like they were entering a competition to compete for me to choose their university at that point. A good confidence boost during the interview. Had I shown offense to a question like that, the conversation could have gone down a darker path.