Okay, haven't done zips or uploads before, so let's see if I did this right. A collection of my 128sc games, playing as the French.
My general impressions of the 128sc map, after playing it three times:
I think it's a good size, though when you look at the overall map it is quite apparent that Europe has been grossly exaggerated in size relative to the rest of the planet.
Because of the happiness/coin issues that's been discussed earlier, in all my games I had to spread out cities in order to capture the maximum number of (scarce) resources with the minimum number of cities, but it looks to me like Iberia, Gaul, Italy, and Germany can each hold at least 3 cities without getting uncomfortably squeezed. There is even room, I think, for one-city Portugal and one-city Netherlands, which means that if you don't mean to include those civs you could even shrink things down a bit. England, I think I mentioned, could stand to be a little smaller, because right now it is too big to fit inside London's hex limit, but too small to make an extra city in the southwest worthwhile.
I had no real problem maneuvering my armies. I described my Roman game earlier. I had an easier time as France in a war against Germany, because there is plenty of room to roll a line of armies across western Europe.
I haven't fully explored the 150sc map, but I launched a game as Greece, and felt like I was swimming in too much space. When Greece can easily hold two cities, it seems like a little too much.
My computer is powerful enough to handle the 150sc map, but even the 128 map started giving me trouble toward the end. Graphics began to go out--the landscape would turn checkerboard--and in-game moves got a little laggy.
EDIT: I tried three times to load the 132 map, but it froze with a spinning globe every time just after the first turn, requiring a computer restart to exit.