You're the one who says 1 can get late inning outs and the other can't. I've literally provided you their late inning numbers. I'm sorry their stats don't match your perception.
Duran is better. Saving him for when they're losing isn't the miracle cure you think it is. Pagan, Duffey, Thielbar, Smith, anybody has to be able to get outs. The offense has to score runs. Pagan blowing the lead in the 6th isn't better. It might make you feel better, but it isn't. Then you're not using Duran at all since the team is losing. They wouldn't magically score runs because Duran is still available. That's not how it works.