I love how all the yonkou represent one aspect of Luffy just taken up to 11:
Whitebeard: the found family being the most important thing and defending it at all costs
Blackbeard: the exact opposite in almost every way, fated D. rival to be Pirate King
Shanks: altruism and good nature (that we've seen so far), also partying (see below)
Big Mom: hunger and strict food-and-hospitality-based gratitude, however twisted
Kaidou: battlebattlebattlebattlebattlebattlebattlebattleFIGHTFIGHTFIGHT!!
Roger: (yeah I know not an emperor, still) is most like Luffy at his core- just a sheer drive toward adventure and discovery. Also I find it interesting that Luffy inherented his partying skills from Shanks who inherited his from Roger. That ability to throw a party is more important than the Strawhat itself, and I stand by the prediction that the mystery dream that Roger and Luffy share is to throw the biggest party ever with the whole world.
Whitebeard: the found family being the most important thing and defending it at all costs
Blackbeard: the exact opposite in almost every way, fated D. rival to be Pirate King
Shanks: altruism and good nature (that we've seen so far), also partying (see below)
Big Mom: hunger and strict food-and-hospitality-based gratitude, however twisted
Kaidou: battlebattlebattlebattlebattlebattlebattlebattleFIGHTFIGHTFIGHT!!
Roger: (yeah I know not an emperor, still) is most like Luffy at his core- just a sheer drive toward adventure and discovery. Also I find it interesting that Luffy inherented his partying skills from Shanks who inherited his from Roger. That ability to throw a party is more important than the Strawhat itself, and I stand by the prediction that the mystery dream that Roger and Luffy share is to throw the biggest party ever with the whole world.