M&M was the last game I played for a significant length of time, but I have quite a few issues with it. Tbh I'd like to houserule it to be more like 4e. I'm very 4e-positive but I think the next game I run will probably be superhero, probably M&M again, though it could be a different system.
I voted D&D 3.5 derivative though maybe I should've voted Other, or even 4e.