As someone who lives close to Case (20 minutes) and frequently visits Mesa, AZ, both cities have different "personalities." Mesa is definitely a cool city, with beautiful weather; it does get super hot there in the summer months, but it is sunny pretty much all the time. The people in Mesa are super friendly too, from my experiences there. I am not sure about the housing situation/expenses there. Cleveland is great too, despite the horrible/cold weather, there are some fun things to do! Case is not necessarily near the safest area of Cleveland (there is some crime for sure), but you don't have to live alone. You can find a roommate and walk to class together/drive because decent off-campus housing is not too far away! Housing is not too expensive in Cleveland either. Also, Cases new facility is more secure than it used to be and the students/faculty that I have met there are awesome!
I know Case uses actual grades for both hand skills and class, which could be favorable or unfavorable depending on whether you want to specialize.
Anyways, best of luck on your decision! Take everything said on SDN with a grain of salt and choose the school that will make you happy/most comfortable in the end!