Personally I'm a fan of the following:
Television:
Firefly
Star Trek: The Next Generation
Terminator: The Sarah Connor Chronicles
Film:
The Terminator and Terminator 2
Serenity
again_with_this wrote:
Sanctus wrote:
Obviously I know stuff such as Star Wars or Star Trek (and I'm not a fan of either).
Now hold up, there were several incarnations of Star Trek. I'd highly recommend the original if you have never seen it--the one from the late 60s. It only ran 3 seasons, so it's not a whole lot of episodes, but it's unlike the latter versions.
Now if you have seen the original series and aren't a fan, fine, but don't limit the experience based on the newer Star Trek series or films. Or even on the 80s films with the original cast. Watch the original show.
While I highly enjoyed Star Trek: The Next Generation, I tried the original series and, while it had its moments, I just couldn't get into it. It's just so... well, the word 'camp' comes to mind.
Oh, and while I enjoy it, I really don't think that Star Wars should be called science fiction. Science fantasy, perhaps.