For me personally, I'd say location plays a distinct second to the people/support network you have around you, and on that basis you can be miserable as sin in sunny Hawaii and happy as SIMMO under the slate grey skies of Bevendean. That said, you may have a good set of people around you in...
No disrespect to Uncle, but my pap diagnosis, made without obtaining a full medical history (copyright Monty Python Psychiatric Dairies Sketch) would be that anyone who starts such a thread would be experiencing some melancholy in their day to day life.