I'd throw out anything related to stargate[...]
Stargate is soft sci-fi, but still much harder than Trek most of the time.
The first several seasons of SG1 rocked. Then there were several that were weak. Then several more that were good. It doesn't survive that long by doing it wrong...
SGA got a little flaky, but is a fun ride non-the-less.
SGU is the TNE of the Stargate line... those who like it seldom overlap with the fans of the others, it's much darker in tone, and doesn't feel much like the others.