Best is in the eye of the beholder. We get sucked in by rank. What is best on paper is not necessarily the best fit. My daughter just started College of Charleston. On paper, it was 16th if the 17 she got into. But fit it was #1.
Your son loved LMU. Hopefully he gets in and u can afford. Hopefully his definition of best doesn’t mean highest ranked. Good luck
No we are not worrying too much about rank. And College of Charleston was another one that was recommended and we are looking at. Good to know your daughter is happy 
At LMU, my son fell in love with the physical campus: the open quad, the view, as well as the proximity to the ocean, and Santa Monica (where he was born) and we go visit almost every year. He just loves it. But he’s open to other places because LA is not an easy place to live. It’s enormous and can be a little overwhelming trying to navigate traffic and real estate is $$$. We’ll see!
Well you’re in college - so you won’t be out and about. I don’t know how kids in California will make it after but a lot of jobs are leaving…and so are the kids.
Charleston is the opposite - small, urban campus. Not NYU urban…but it doesn’t have that central theme. While they have some business majors, I don’t think they are strong in business. Lots of colleges are open like that though.
There will be many schools that meet your aesthetic needs but they might be lesser known.
Good luck.
You mentioned Santa Clara in your OP. DD is a grad and knew a number of business majors. It’s a great program but the school is pricey. We are big fans! Those Jesuits really know how to do higher education.
yes, my son liked the community feel at LMU more than the competitiveness you’d find at some traditional (non-Jesuit) schools. Even when we toured UCLA, several students remarked the one thing they didn’t like about it was how competitive it was, not just to get in, but also once you are there.
If he likes the Jesuit schools, he could check out Regis U in Denver!