Britain has a history of great cyclists, great athletes, great rowers, so to excel in a sport where we have not been great for over 70 odd years and in the toughest era ever, then yes Andy Murray deserves all the accolades coming his way. Despite what some might see as petulant behaviour when he's struggling in a match, it is rarely directed at his opponent, in fact I think he's one of the most honest and least arrogant sportsmen I've ever heard interviewed.
Had ranking points been awarded at the Rio Olympics (as they were at London 2012) Andy would already have been No 1 in the world, so fair play to him for the hard work he has put in this year. If he does well at the end of year championships I can see him picking up SPOTY for the third consecutive year.