what kind of question is this? murray is a multiple slam finalist with several masters titles in his account while pony boy only managed to fluke away the USO.
murray is bigger and more consistent in pretty much every department. no comparison, really.
Read thread title again. This time try harder.
DelPo obviously. He beat Fed and Nadal and was pretty dominant. Not to take anything away from Murray but if you compare both USO slams and if you'd favor one over the other in terms of tougher road and value DelPo's is imo ahead to Murrays. And it's not even close.