They don't only depend on that, but if too say the match is on one of their racquet, I think Murray's form and mentality has more to do with outcome because has more ability in the first strike area where as Nole is more consistent as the point goes on.
I don't know but none of them is a player who relies a lot on one-shot strategy, and none of them can do that on a consistent basis during a match anyway.
I don't believe in such a strategy even for Federer then you know, Murray or Djokovic ...
The strategy of the one who is very solid is also a winning strategy.
And it's typically the strategy which Djokovic and Murray use on big points although they're able to do something else.
Imo there's something in his shots (more spin for him, flatter for Murray, better control on his forehand) and in his physical balance and thin body which make Djokovic potentially more solid on a good day than Murray can ever be with his shots and bigger body.
Then when I mean "it's more in his racket" I don't mean about making winners, not at all, quite the opposite actually : the ability to avoid more errors if he really wants it.
And I disagree that it's very rare these days to have a Djokovic with a bad mentality. His mentality is still up and down, more than in 2011 anyway.
I agree with Dr Jules that a lot is mental in their matches and they both have their ups and downs in that aspect, which often explains the result.