What would you say is the most 'powerful' naturally occuring culture in the game.
Of all the cultures that you can start as, which has the most powerful bonuses to not just warfare but gameplay in general? That is, objectively, which is the 'best' so to speak, ignoring other game factors like common faith or amount of counties under it.
I'm gonna say from the top if my head that english is a good contender due to both chivalry making all romance schemes pay out 100 renown and longbowman giving longbowman.