I follow the physical sciences (by education,) astronomy/astrophysics (by interest,) and biology and earth science as time permits. As far as I can tell, Science and Nature still get topnotch stuff.

As a Science subscriber I try hard to make time to read papers well out of my expertise. I start with the research summary article (by an independent writer) for context before going to the full paper. I figure if it made it to press there, it is worth my time to figure out what makes it important to that field.