I'm going to have to disagree with you about Annoymous, they are just as evil as Lulzsec.
The thing about Anonymous is that you can't lump them together as a single group. The requirement for being in Anonymous is that you have an anonymous internet presence, but other than that there is no code of conduct, no cause to follow, and no leadership. Oftentimes, they are morally good as far as opposing unjust things go. Only recently have they been painted in such a negative light. The cause of this would be that some of the splinter groups now have an extremely hypocritical and self-righteous viewpoint, and their actions can border on terrorism.
For instance, in their defense of Wikileaks they attacked any company that spoke out against it. Wikileaks, in principle, is all about exposure of information, but Anonymous' stance on the matter was that they wanted to control the information and crush those who speak against them. That is the very belief Wikileaks was opposed to. Anonymous pretty much ignored its own principles and used it as a banner to rally under, yet they chose instead to fight fire with fire, because to them Wikileaks was simply an effective tool for fighting the status quo.
Other groups of Anonymous, however, was more about vigilantism. They contacted the police to arrest animal abusers, distributors of child pormography, and other internet criminals. They had peaceful demonstrations on the streets to speak out against the Church of Scientology. But those are the minority of the group, while the majority pretty much does the same things that LulzSec is now doing.