Any of the three should do you well. At the same price, I would probably go with the Craftsman for the more powerful motor. Second choice would be the Skil.
If you dismiss Chinese built out of hand, there is not much left. My Grizzly table saw was built in China. It is as good today as it was 17 years ago when I bought it. My Craftsman/Ryobi router is still working fine and it is also 16 or 17 years old. My Craftsman drill press works very well.. about 10 years old!
Here is a quote I found on a forum.. have not been able to verify origin but...
RIKON Power Tools is a division of Richen Enterprise, Inc. headquartered in Woburn, Massachusetts. Our products are manufactured in Germany and China. We have warehouse facilities in Massachusetts, Washington, and Illinois.
Here is link about both Steel City and Rikon.. Asian Tool Tour: Woodworker's Journal
Chinese tools are generally as good or as bad as the QC team requires.. no QC you will probably get junk!
Quality of work still requires attention to detail and acquired skill. Although quality tools do make it easier. For A hobby shop I don't think you would be disappointed in any of those choices!
Quality needs to be assessed on a per tool basis rather than country of origin... check the origin of the parts in your Ford or GM vehicle!
For A hobby shop I don't think you would be disappointed in any of those choices!