I've played this game since Civilization 2. I think I was very young. Yes, yes I was.
I played all parts (- Revolutions, don't have a console), but I can say Civ3 sons every other in the series. The charisma of the game is unmatchable. I remember skipping a week of school to play Civ3 with duh Russians.
I also liked Alpha Centauri a lot. Great shit.