Depends on what creativity means to you.
For me the most creative would be the one who has been able to constantly reinvent his sound, blend genres, make music in multiple genres and execute it perfectly.
For some others, they'll choose the guy who builds entire albums around narratives, characters, and themes and is able to turn his albums into experiences.
And others would choose the guy who has the ability to turn everyday concepts into something more complex and finds fresh ways to communicate everyday struggles, ambitions and emotions that resonate deeply with the listeners.
I saw a post on Reddit that said that “The underlying purpose of AI is to allow wealth to access skill while removing from the skilled the ability to access wealth.” And I don’t think I’ve ever seen AI described so incisively.