For me, with two three year tours there, best simply has to be Akrotiri. I was mostly living down in Limassol, great food and drinking, nice place to live and great places up in the mountains to visit. I did an unaccompanied tour at Masirah and have to say that apart from the troublesome aspects of being unaccompanied, I greatly enjoyed my tour there, the esprit de corps was tremendous and the time simply flew by. Best in UK for sheer ambience was Chivenor, worst; Cosford as a Boy Entrant