Vegepygmy said:
In the same speech where he proposed overthrowing the Emperor so they could rule the galaxy as father and son? Uh-huh. Sure.
How does that mean he would maintain law and order? Vader just wanted to be the big boss. He was chafing under the oppressive thumb of Palpatine. He just wanted to run things his way.
Don't get me wrong, I see the arguments for lawful evil, etc... I'm just convinced that at the bottom of everything his key motivations and reasonings were based around selfishness. What gave him what he wanted? What made him happy? What did he feel he deserved? When did he think he should have it by?
It was his selfishness that Palpatine used to turn him.
He didn't even love Padme more than he loved himself, otherwise he would have trusted her, or at least give her the benefit of the doubt. But no, she wasn't doing things the way he wanted them, so he declared her a traitor to his love and hurt her. Padme killed herself more than Vader did. She could have lived, if she wanted to. Ultimately she was pretty selfish too. She wasn't even willing to live to raise her children. Her "broken heart" is what killed her.
Still, like I said, I can see the "lawful" side of things, "chaotic" side of things, but ultimately everything he did was to give himself what he wanted.
Like Blargney says, law and chaos were used as tools to achieve his own ends.
The same could be argued for Palpatine, but I think his ultimate goal was "lawful order" administered by him.
Vader just wanted it all for himself. He may have tried to maintain a lawfully ordered empire, but he was nowhere near the tremendously effective manipulator Palpatine was.
So when control of the empire would have started to crumble he would have resorted to his own powers of intimidation and fear to control what he could. It would have been a relatively small part of the Empire in comparison to what Palpatine weaved together his control of.
Who knows? Maybe Vader paid more attention to Palpatines methods fo controlling the Empire than I give him credit for.
Still, he would only appear lawful because that would be the ost effective way for him to maintain the pwoer and control he wanted for himself. Not due to a genuine commitment to law. Just the fact that its an effective technique for maintaining control over something as vast as the Empire.