Both schools are great of course and Pton gives more aid than almost any college in the world, my son would have paid double at jhu.2 years ago, son took a summer trip to visit the state school, vandy, duke, jhu, pton and yale. Wanted to major in Biomedical engineering. Liked the state school, loved vandy, loved duke a little more, did not like jhu at all, loved pton, did not like yale. Didn´t apply to jhu but got into pton scea. His comments were that vandy and duke had a friendly atmosphere, whereas jhu felt like grad school, little fun, much work and stress, did not like the surroundings or the campus but did mention that if here were completely sure he wanted to be a doctor, then he might have chosen jhu, it just seemed like med school at the undergrad level. He wasn´t really sure what he wanted to do for the future, so he decided on pton where he felt a more friendlier and liberal artsy air. Since at Princeton he is now sure he wants to go to med school, doing the premed track through mol bio and very happy he is at Pton though clearly jhu will be an option at the next level. You really need to go for yourself and see if it is for you. I am sure he would have been happy at many schools but jhu just didn´t feel right for him at the time, again, just a day visit in the summer. He also assures me that Pton is the pressure cooker of the ivies or at least that is the reputation and he is actually happy he is being pushed there. Best of luck.