When the official server shut down, most (95%) were using 1.02 exclusively. Only some old-timers who prefer gameplay closer to that of the original Shogun used 1.03, and they rarely came on.

After the official server shut down and the fakeserver was put up, there was a very brief period where a regular group showed up on the weekends. Most were using 1.02, but some of the 1.03 players showed up for a few games too.

My take is this: if you find anyone on the fakeserver, they are more likely to have 1.02 than 1.03. If you arrange to meet here first, you can discuss what patch you'd like to use. Installing a swapper will allow you to take advantage of any opportunity to play that presents itself.

Personally, I tend to play 1.02 because I've played many more games using it, so I'm used to how it plays. When I use 1.03 my guys don't perform like they do in 1.02 because of the stat differences, and I have to adjust my playing style and unit selections, which takes time to fine tune. As one rarely plays more than a few games here and there nowadays, I never get to the level of proficiency using 1.03 that I have using 1.02. Granted, given that I hardly play anymore, it really doesn't matter. I play little better than a newbie regardless of which stat I'm using.

Anyway, hope that helps.