I'm sure I could restart and take them all as companions now, but letting homicidal maniacs adventure with me is not my style at all.
They're really not as bad as you describe them. They're hunted by their own issues, yes, and they can be pretty aggressive (well, maybe because they are in a prison with torture and stuff?), but they are no maniacs. You can get along with them if you just try.

[Quote] I think I'll wait to play until some less crazy companions are released.