If you would like a few points in favor of CWRU, note that (1) its standardized scoring profile lands a trace higher than UM’s and that (2) it offers more geographical diversity based on its higher percentage of out-of-state students.
Either school would seem to offer you good faculty-mentored research opportunities: https://www.usnews.com/best-colleges/rankings/undergrad-research-programs.
Best of luck with your decision.