India and Venice.
India's UA simply limits expansion and because land is power in this game, limits your ability to win. So if land is power, India is a potato. So, if I need a certain luxury and I can settle there, I eat double unhappiness... so I have to kill my economy in order to win the game? How is that fair? I can't win for losing with India's useless UA.
Then we get the uselessness of Venice. Why can't I make settlers? Why do I have to spread my power all over the map by buying city states? Seems like a dumb concept to me, a concept I want nothing to do with. What was Fraxis thinking when they though of this? You can kiss defending individual cities goodbye when your forces spread all over the world.