It's actually close.
Danault is the better defensive center. And this year he's putting up the points as well - without any PP time.
You can probably give Kadri credit for his body of work offensively, while Danault's scoring moving forward is a question mark, but even so, people tend to forget technically Danault was the Habs 1C in 16-17 when they won the division
I would say considering this season, he's starting to solidify himself as a legitimate 2C - not just being there out of necessity.
I guess it comes down to how much you value goal scoring over defensive aspect of the game, but i really don't think Kadri is more than a 2C himself so AINEC doesn't apply here IMO.
I voted for Kadri just so that i don't anger any Leafs fans