for me and many other players the broken AI ruins the game and makes it dull, I rarely enjoy the game because I dont see any challenge from the AI and I lose interest quickly.
Sadly highest difficulty does not make the AI more interesting but makes the game more annoying. Highest difficulty just gives the AI extra bonuses and less handicaps, which means the AI will not be smarter but only have more units and less unhappiness , but in the end it will be the same stupid AI you are dealing with and nothing is changed at tactical or strategic level.
Also some weird AI behaviors were reported by many players, like not capturing an easy to capture city (even empty cities in some cases), no idea how to line units, poor great people management (you see them wandering around doing nothing) .. and a long list of "Must to fix" things that we dont see in any patch list even more than 7 months have passed science the release of the game !
I dont want to turn this thread on more complaining about the AI, but I just noticed what the heck they were doing in 2kGames in the last 7 months ?!