With Civilization 6 in full swing, it's safe to say that the tier list for Civilization 5 will finally stop being altered and is now set in stone. RELATED: Civilization 6: 10 Ways To Become The Richest Empire But he's got company that surpasses even him at the top now! oh, well, that's a bad example, he's still great. In Civilization 5, Alexander of Greece started out as the unquestionably best leader and now he's. Fans of the Civilization series know that no strategy is good for more than a month before players catch on, patches balance the game, and DLCs and expansions flip the script.