Pathfinder is chugging along nicely with a lot of support. They're basically the vanguard of the OGL movement at this point, and their fans are pretty dangnab loyal.

4e is growing out of it's shell a bit (IMO), trying some exciting new directions in design with the PHB3, and a lot of folks are pumped about the new setting being released for 4e, the classic
Dark Sun.
There's a handful of other cool stuff out there, like Trailblazer and the e20 project, kind of trying to forge ahead in their own way, but most of my knowledge is coming from D&D 4e. Which, if you didn't like it, you probably still don't like it, so there's not a lot to discuss, I suppose.