I feel like the Pacers will be completing for a playoff spot because the East is so weak; thus Turner will play as much as he can.
On the other-hand, the Knicks will be one of the worst teams in the NBA. So Porzingod will always be a shut down candidate down the stretch. And as mentioned above,
Turner is more durable than Porzingis.
I would take Turner over Porzingis, but it's close.