I think it's a bit pointless to ask "Who has the most star power" as if it's something you can measure.
As Stephen Sondheim wrote, "You either got it or you ain't." That's it, it's not like some people have it less than other, some have it, some don't.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"