Good/bad to mention other college acceptances in interviews?

Hello, I was lucky to get into Princeton REA in December and now am getting interviews for Harvard/other schools. If my interviewers ask where else I’m applying or it otherwise can be brought up naturally in conversation, would bringing up that I got in make me look like a more appealing candidate, or is it better to try to act like whatever school I’m interviewing for is my top choice? Thank you !