It's a hard truth, but not all Civilization 6 civs and leaders are created equal. You have your obvious top-tier choices in Korea for science victories, or Shaka - leader of the Zulu - for domination victories. If you're playing multiplayer, then civs such as Japan, Maya, and Rome are considered some of the best the 4X game has to offer.
There are plenty of different criteria you could use to create a ranking list - and that's even before we acknowledge the impact of personal bias - but Civ 6 fan GimikkuPappeto from the Civ subreddit has decided to rank them based on how friendly they are during games. Only two are ranked top tier in the 'eternal friends' category: Gilgamesh, who leads the Sumerians, and Poundmaker, leader of the Cree civilisation in Civ 6.
Brazil's Pedro II and Australia's John Curtin are the two bottom-tier civ 6 leaders, in the 'eternal archnemesis' category. The remaining 50 leaders are split between five other tier ranks, with a small majority placed in positive tiers versus negative ones. While this tier list does include alternative leader options, it doesn't include the alternate personas for Teddy Roosevelt and Catherine de Medici.
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