Halak all the way. Ride him until the season is over. He's the guy who has earn the chance to play. Price was GIVEN the chance, but he certainly has never earned it. Halak has earned it and deserves to play.
Plus...if the Habs are wondering about trading Halak, playing him will boost his value to other teams and we'll get more in return.
But at this rate who knows, Halak could turn out to be the future of the Habs and Price might be the guy who should be traded.