Why Oxford-Emory for Pre-Med?

@bernie12
Hi, above in this thread you had mentioned about composite letter
What’s a composite letter and do premeds with high gpa or top of the class request those ?
I also read to go school for premed where you can maintain gpa and have time to prep for mcat and do your ECs, volunteer work.
If you have an option to go to state school vs Emory Vs say Vanderbilt and Washington University
What should one pick or think about
Does a school matter?
How would you compare these schools in terms of maintaining a good GPA for med school. Given that one works hard and is focused. I like smaller schools.
Hoping to get your thoughts on this.