Well, I was at my first Regional two days ago.
I was surprised that there were only two Moons decks. Of course they both made top cut. I think Netrunner players are all hipsters who want to do their own cool obscure thing that no one knows about--hence why we're playing Netrunner in the first place.
IG and CI-7 are very good right now, a CI-7 made top cut. But in the middle tables there was a WHOLE lot of Weyland, like, all different kinds of Weyland. I nearly made top cut with Core Set Weyland, and there was some Builder of Nations, Gagarin, etc. On the Runner side, it was evenly split between Andromeda, Pre-paid Kate, and Maxx DLR, though a Kit Inversificator deck made top cut.