We have not played for a couple of months, but are looking to start up again. That said, we were giving Savage Worlds a go after a very long M&M campaign. Prior to that it was a house ruled 3.x (Core books with, mostly, Unearthed Arcana and some third party products for support/rules changes).
Currently, I am giving 4e another look, but, as with 3.x, I don't think I would run it without several house rules.
I also want to run new campaigns in both my house ruled 3.x and Mutants and Masterminds (However, I am waiting to see M&M 3e and DC Adventures before I start the latter).