He doesn't have the strongest power though. He has the most ridiculous one.
Godlike powers? Your over exaggerating with that. “Most ridiculous power in the world”
At least i hope that in the next chapters, Oda explain Luffy's process/struggle of conquering or controlling Nika's will in the fruit before he Awakened. At least make Luffy earn it, thats one of Oda's biggest homework regarding this powerup in his plot.