University of Michigan VS UMBC Mechanical Eng

Hi, My son got into both University of Michigan and UMBC. He wants to go to UMBC as he thinks he might ace in UMBC vs UMich.
Is UMICH very hard to pass through and UMBC is easy…
Should i pay attention to grades or the programs/internships/clubs should be looked at?

Yes the curriculum at Michigan is probably more rigorous. If your son is a strong student seems better for him to go to the more rigorous program-cause potential employers will know the difference.