Narrowing Down My Search

I’m a rising high school student that wishes to study international relations.The colleges I know for a fact that I’m applying to are as follows:

Georgetown University
UC Berkeley
NYU
UT Austin (visiting soon)
American University
George Washington University

There are other options I’m really interested in. I’ve categorized them from lower to higher chances of being accepted:

Low:
University of Michigan
Cornell
Johns Hopkins
Duke

Medium:
UC San Diego
UCLA
Rochester
William and Mary
UVA

High:
Baylor (visiting soon)
Hofstra
Syracuse
Penn State
Washington
Ohio State

I’d like to pick 1 more from the low category, 2-3 more from the medium, and 2-3 more from the high. Can you please help me narrow these down? Do any of these schools have anything that sets them apart in there international relations programs? Are there any student testimonials and experience you could give me? Thanks.