I love a nice predictable AI. Let them send waves of inferior troops right into my most heavilly defended regions - there's a feel-good factor in sending 10's of stealth fighters to attack 3 dragoons and a musketeer.
For me, the thing that ruined Civ2 was the end-game (or lack of it). Having built-up 200 howitzers it was rather easy sweeping all!
Build cities as quickly as possible (up to 65 or so). Lay down roads, irrigation (each city producing 2 setters for this purpose). Improvements built in the following order: Granary, temple, marketplace, etc etc, every city to build 3 caravans (or freight) as soon as it's marketplace is built. Stay out of trouble until 200 howitzers are amassed (and glinting in the sunlight). As for the ocean, have battleships and aegis cruisers occupy the same squares at all times. Carriers are really for prestige.
Great Library, Magellans Expedition, Michaelangelos Chapel, Leonardo's Workshop, UN (change to Communism).
Haven't played CIV for a year, but I'll always be shit-hot. I like SMAC alot too, but the changing sea-levels and fungus are a constant irritance.
Great how you can dload these games from Kazaa!!! I did it just to be able to play them without the discs.