I can't be 100% on this, but I am sure I remember my mate who owns a staffie (old gal now)telling me that Staffs are the 6th most best house dog? or something like that!

I know that the Daschund "can" be aggresive, but I think that's down the owners (which is normally the case with most breeds). They tend not to discipline them properly and let them get away with murder... which can lead to undesirable behaviour. Which can often be the case in many toy breed dogs. The owners tend to let them do what they like, because they are too "cute" to tell off... lol.