He leads the overall head-to-head 4-3, has a better GS career win % (78.7% to 74.0%) and a significantly better Australian Open win % (78.3% to 70.6%). He also has the experience of winning a GS, and at Melbourne Park no less.
If a tennis match could end up in a draw, this one might well. I'm gonna stick my neck out, it's Murray's time. He'll win the Australian Open in 5 sets
* Unecessary but interesting stats:
If Djokovic wins, he'll lead Murray by 2120 ranking points, if Murray wins the gap will be just 520 - we've all heard of a 6 pointer, this is a 1600 pointer.
A Murray win will also take him back up to 4th in the rankings, whereas a defeat will mean that remarkably Soderling extends his lead over Murray to 195 points