What do I see in SGA's John and Rodney? The differences between them can be huge (military/academic, rude/polite, athletic/not) and yet their friendship (and the slash) is built off what they go through together and their personal growth as it happens. I honestly enjoy quite a few gen and team-oriented fics in SGA in addition to the slash simply because they're filled with adventures on different planets, dealing with different cultures and different environments. Of course, there's the science fiction elements too.