In national recognition, yes.
Two majors are business. One (Purdue) is engineering. That’s a big difference.
Two are in CA. One is a mecca of jobs.
Not telling you to spend. I get it. College is expensive.
Purdue will be his most “collegiate” opportunity, have name recognition, etc. That said, you can have a great experience at lesser named schools. You may have to work harder to find a job but you save a lot of money.
That’s an unusual mix of schools. Pomona and Merced are both regional in scope; Purdue is a strong national school, especially in engineering.
Unusual your other two choices aren’t…that’d be my first question. What major does he want. If you’re going to be an engineer, then be an engineer - and you can’t do much better than Purude in that regard.
If money is an issue, you still have time to apply to Arizona…they give big bucks based on GPA.