I don't like copper heads either. I much rather run across a rattle snake than either a copper head or even worse a cotton mouth.
The rattler will at least try to warn you but the others just bite. Moccasins can be down right mean. A moccasin will sometimes even attack or seek you out. I think they are a curious snake while all the others want nothing to do with you, will try to get away and bite only in defence.