UNC Chapel vs UPitt vs UMD

Hello Guys!!!
I got into all three schools and am having a problem which school to pick.
I am a biology major on a pre-med track. The cost won’t matter for me since I am an international student. So please ignore that.
Do you guys have any opinion on which school is a better bet for my premedical journey?
I also want to participate in research, volunteering opportunities, and anything that will help my med school application.
Thank you.

UNC all the way!