I have to disagree with all those who say that you’ll have a hard time finding ‘authentic’ Catholicism at Notre Dame–I will be a junior at ND this August, and I absolutely love my school, for so many reasons!
ND is the foremost Catholic university in America which still professes to care about her Catholic identity–you can’t deny this. For all the problems we have with various events / professors / etc., there really is no where else in the country (or perhaps the world?) which I have heard about that cares as much about faith and reason and the Catholic intellectual life as Notre Dame.
I’m a political science and theology double major (PM me any time if you have specific questions about ND profs–I can definitely recommend some and tell you about the positives and negatives of the department!) and have had great experiences with the vast majority of my classes. Once you find them, there are many professors who truly care about ND’s Catholicism, and who use their faith to inform their intellectual pursuits. Yes, we have some profs who don’t give a darn…but there is so much more ND has to offer!
Honestly, the intellectual rigor of a Notre Dame education is hard to find anywhere else, I think. Perhaps some of the smaller Catholic liberal arts colleges can begin to compare, but honestly–I looked at Steubenville, and it just wasn’t there. If you’re up for the academic challenge, go for ND. (I visited BC, too–the ND bubble is much prettier! (Though they do have Peter Kreeft…)

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As far as personal faith goes, each dorm (all 26 single-sex dormitories) has Mass weekly–most of the men’s dorms, because they have priests-in-residence, have
daily 10pm Masses. If that’s not your thing, the beautiful Basilica of the Sacred Heart on campus has Masses twice daily and several times on weekends. I love Basilica Masses–Holy Cross priests are fantastic all-around, and the choirs are the most reverent and talented I’ve ever seen. I miss them over the summer!
Notre Dame is a great Catholic university, with people coming from all across the country and around the world to study. 80+% of our students are Catholic, and while not all of those are the most orthodox / faithfully practicing people you’ll find around, most do make a good effort to practice their faith.
I need to finish this later…but definitely consider ND!