My brother is very... unusual.
He is very different from anyone else I've seen, highly intellectual (though thoroughly non-academic), a creator of trends rather than a follower, and very highly social (to the point of gaining a huge following in high school).
I think he might have mild AS (very limited and intense interests, overly formal speech (he has talked about how he needs to make a conscious effort to "dumb everything down" when talking to anyone but me), OCD) While I haven't talked to him very much about it, he seems to have developed a tremendous understanding of social interaction on a cognitive level, and a deep enough understanding to interact with people much better than most NTs.
We would sometimes joke about how I was given all the academic drive, and he was given all the social skills.
My mom's brother is most definitely an aspie (though my mom is very NT), my dad shows a lot of AS traits as well, as does my sister. I'm the only one who it seems to have been strongly negatively affected by AS.