I think you're both right. They're incredibly different players. Dahlin's skill and control were amazing, he attempted the audacious puck-handles and truly wow moments. Sometimes it backfired. As an 18 year-old, he managed to get back and diffuse a bunch of those mistakes. Then Krueger happened and he couldn't be who he was. Fast forward to now, and his defensive game has matured, his IQ and passing are still off the charts, and he no longer backs down from anything.
Power is different. Power doesn't attempt the impossible. He's so smooth, controlled, and fluid. He's had the benefit of NA ice and college coaching (even if just for a season) that's allowed him to be a more defensive stalwart earlier. However, I don't think he'll ever reach Dahlin's offensive bravado. Yes, he'll pinch for the tap-in, but the ... derring do! is not a Power quality. But he'll be oh so reliable.