You have to decide, but BC and Georgetown are both Jesuit schools and likely if you find BC too religious, you’ll find Georgetown that way too. If you just don’t like that there are religious symbols, masses, religious faculty, crucifixes around the school, those things won’t change.
Before you dismiss them, think about what you are worried about. If it is being converted, don’t worry about it. You will have plenty of opportunities to explore many religions, practice your own, or learn about other religions. You will have to do service projects because that’s part of the Jesuit mission. Many many options.