You know, I've been thinking about this long and hard and I have come to the conclusion that the Capellan Confederation is not evil. Well, torturing people and whatnot is evil per se (like the other Houses don't do it), and they've had insane Chancellors and whatnot, but overall I don't think they're evil. Don't get me wrong, I'd rather live in Davion space, but I think the overall cultural expression of the Capellans (which, thinking about it, really isn't that much different from the Korean culture in which I was raised) is good.
Now House Kurita, they're evil.