Currently undecided, probably Dkrol if I had to choose right now, since I'm wary of handing Labor complete control of the federal government.
I think this generally is a very unfounded worry. For starters, with 5 Senators and the Presidency, Labor does in effect have full control of the government unless literally everyone else is opposed to a particular decision.
Secondly, I actually compiled this a couple of weeks ago when similar discussions were being had: since the beginning of November (when Labor returned to having 5 Senators), I couldn't find a single piece of legislation that passed or failed with fewer than 8 votes where all 5 Laborites voted as a uniform bloc.