I learned to play Civ2 decently by studying some of DaveV's saves, about 20-30 turns apart. At first, I had no idea how he could conquer at Diety level in 700AD (I finished the same game in 1800AD). But it was fairly easy to see how he got from one save to the next. I learned a lot from looking at details, such as what the cities were producing, where the units were posted, etc, which you can't get from a log. Soon I had a good idea of which factors were critical (total production, mobility ...) and then I could imagine even better ways to play. I remain extremely grateful to him for sharing those files.
He also made a few brief comments about his strategical decisions in the game, which were more valuable to me than any standard game log. [In my opinion, most game logs are long, but superficial. It is usually very hard to know what the player was thinking, and what was important].
Unfortunately, we cannot post saves from active GOTMs. But if you want to learn a strong player's style, you could ask them for a few saves from some older GOTM that you are interested in.