1.1h IS what you want to be playing.However, my experience in convincing people to download it (often unsuccessfully) tells me that people are scared of upgrading-because it's "unofficial".
I think just about everyone is using the patch but I could be wrong there.
I generally find more ppl playing 1.0 than 1.1.
I downloaded the 1.1 patch and for some reason I can't get it to work. I also folllowed the notepad of directions, but still no sign of 1.1 on my game list.