I'm not sure about a full on clan war with DAT, personally, because of the meer fact that they'll slaughter me. I consider myself the weakest in the clan.
Sigma I don't know about, seriously I'v only seen like 2 of them online before and I didn't like either of them.
I am neither a sheep, nor am I a lion
Edit (10 years later): Damn, I was an edgy sellout...