I am going to give an extremely biased yet accurate opinion since I studied the undergraduate course at RGU. Of the scottish unis, from what I understand, Calley and QMU don't get any clinical placements until 3rd year I think this is way to late to get the clinical experience to know that you will enjoy the job for which you are training. The emphasis at RGU is on clinical practice where as at QMU is research. Apart from the fact its 150 miles north of Glasgow the campus is in central aberdeen and all brand new in 2002. If you are based in Glasgow you can get placements here. The RGU masters course is also the only UK course accredited in the US.
I think in general people are pretty narrow minded when choosing unis in scotland and like yourself always go for the main cities. I was offered places at calley and RGU and am happy with my choice. As for employability clinicians I have spoken to seem to think that RGU graduates are ready to hit the ground running rather than having their hand held due the significant differences in clinical education. If you do well on a placement you'll have a good chance of being offered a job there when your qualified.