I metioned the willingness to destroy the entire world as well, so just by restating what I've already said, no. However, anyone who is really evil just isn't going to get along well with "good" people.
I think, however, that we tend to overuse the term evil. More and more and more things are being called "evil" now-a-days. Before it was applied to terrorists, child pornographers, rogue nation leaders and such, evil refered to work of the devil and his servents (who are innately against order and peace and all good things), the actions of truly sick individuals like serial killers, people who torture for their own amusement, and so forth. I personally think Communism and mass-murder do not both equally deserve the terrm "evil", nor do I believe that a terrorist who is trying to make a political point through violence and scare tactics is on par with a psychopath who mutilates people for pleasure.
Evil is a truly sick, twisted thing. It is a corruption of all good morals and anything good in human nature. Anything less, to me, is simply deviant, selfish, violent, or misguided behavior.
I also firmly believe that true evil is not something that most humans can wrap their minds around. We tend to put kiddy gloves on evil when we apply it to most things.
Well yes, this is Chaotic Evil at it's finest. Evil in itself just pretty much means you do not really care for life. Killing sentient beings brings pleasure rather then moral anguish and unlike Good they do not seek to always preserve things.
I don't know, the D&D axis is just more friendly to me. Since not everyone has to be trying to destroy the existence of this world to be labeled "Evil".
The Devil trys to overthrow God yes, he could be evil but you need to ask yourself, is he just trying to annihilate the entire world or rather is it misguided attempts for a new order? Sure he does not mind killing, and that in itself is what "Evil" really is.