I have a RH and GH City, and RH and GH Cities are also different because of the handles.
GH City handles are longer, thicker and have double stitching - they're almost out of proportion to the bag. Along with the hardware, GH City is in a way 'too much stuff, too little bag'.
Having said that, they have attitude and sometimes that's what you want! But if I could pick just 1 City it'd be RH, you can always put a charm on it....