As someone who went to Harvard, I'm pretty sure there
are a lot of extremely decent universities that all basically provide the same quality of instruction. People just get unreasonably hung up over the 'best' schools, but there are easily at least like 100+, if not several hundred, that provide easily roughly the same educational experience as far as I'm aware.
The peer group may definitely dramatically different from what I can tell, but if you're a serious student and there for the learning above all, very straightforward to get into a school that will teach you just about anything you could learn at Harvard or any other Ivy League or similarly 'elite' school.