My take on Rorschach, since it doesn't seem to be going away.
I loved him too... as a character... in that comic... in any other context, especially in real life, I would consider him a monster. The only thing I actually admire about the guy is his integrity. He is consistent and honest and dedicated in his beliefs, even if those beliefs are misguided. In most stories, those misguided beliefs and ruthless pursuit of them would make him more of a villain, integrity or not.
But then you compare him to the rest of the cast...
Comedian: Morality collapsed under the weight of his own cynicism.
Dr Manhattan: Detached from humanity to the point of barely caring.
Silk Spectre/Nite Owl: Decent people with good intentions and heads mostly on straight... but their true motivation for super hero work was addiction to the thrill, which didn't make for very dedicated heroes.
Ozymandias: So full of himself that he was blind to true nature of his actions.
Rorschach: The only guy who showed real conviction, drive, dedication, consistency, selflessness, etc. He ended up standing out so much for being the only character with these qualities, which are normally basic requirements for a Straight A protagonist. It's not surprising that so many people defaulted to seeing him as such. Too bad he was also a raving lunatic. Alan Moore did NOT intend for this guy to be seen in a positive light. He was written as satire.