I've owned and played all of the Civ games (including Civs I-IV and even Civilization Revolution for Xbox 360 and DS) but the one I keep coming back to is Civ2, which I've played countless times. I just picked up CivV and want to get back into the modern era, so to speak, of Civ games.
My go-to strategy in Civ2 was pretty straightforward: build new city after new city, tiling them so they each fit snugly against the borders of the next city leaving almost no gaps - and establish key city locations that will prevent other civs from developing more than a handful of cities. After grabbing all the land (which drives up the treasury and science), get Democracy, max out science and production. By the time I reach tanks, the other guys are often still on catapults, and I can go through and wipe everyone out. One thing I often do is leave one last city, completely surrounded by dozens of mechanized infantry and tanks all around while my Engineers run around and put railroads on every single space on the world. Only when all of that is done and every city I control has every possible building/improvement and there is literally nothing else that can be done, I go in and wipe out that last city.
I never got into Civs 3 & 4, since my pre-set go-to approach didn't really apply and I never got around to learning the new fundamentals. In Civ V, for example, I'm building city after city, but there are gaps due to the amorphous nature of the cultural borders and my cities all seem unhappy and not really growing.
Any advice on some basic strategies like the one I outlined for Civ2 above? Anyone else in a similar situation?
My go-to strategy in Civ2 was pretty straightforward: build new city after new city, tiling them so they each fit snugly against the borders of the next city leaving almost no gaps - and establish key city locations that will prevent other civs from developing more than a handful of cities. After grabbing all the land (which drives up the treasury and science), get Democracy, max out science and production. By the time I reach tanks, the other guys are often still on catapults, and I can go through and wipe everyone out. One thing I often do is leave one last city, completely surrounded by dozens of mechanized infantry and tanks all around while my Engineers run around and put railroads on every single space on the world. Only when all of that is done and every city I control has every possible building/improvement and there is literally nothing else that can be done, I go in and wipe out that last city.

I never got into Civs 3 & 4, since my pre-set go-to approach didn't really apply and I never got around to learning the new fundamentals. In Civ V, for example, I'm building city after city, but there are gaps due to the amorphous nature of the cultural borders and my cities all seem unhappy and not really growing.
Any advice on some basic strategies like the one I outlined for Civ2 above? Anyone else in a similar situation?