https://www.cbr.com/x-men-cable-magik-limbo-queen/
Interesting take since Illyana has mostly been seen as a pretty neglectful ruler of Limbo, with the only time she actually a lot of time there doing any ruling being when she was missing all of her soul. It makes sense given that she has spent most of her life hating the place. Despite her neglect of Limbo the demons seem to really like her. There were the demons who were begging her to stay and rule them during Inferno when she was in her Darkchild form, and there were the demons who tried to rescue her when she was imprisoned on Utopia.
But in terms of leadership, she's always had the tactical skills. It's the inspiring others to follow her that's always been her problem. The New Mutants beat the Demon Bear very quickly once she decided to take charge and tell them all what to do, and she came up entirely with the plan that defeated the Shadow King after deciding Dani wasn't willing to do what was necessary. We've seen her long-term planning in the Zeb Wells run and her ability to make quick decisions in the heat of battle in the Bendis run. Dead Souls showed her team constantly not listening to her because they didn't trust or feared her, even though she was almost always right. In the Krakoa era this has changed, with most people listening whenever she takes charge - the only exception so far has been the teen bullies in the most recent New Mutants who were very quickly put in their place.
The big question is, how much of this is due to her own growth and becoming the sort of leader people listen to, and how much of it is just respect for the office of the captain.