I love pretty much all of this post.androids is right, Re: The creation of Jack Noir.
There are a lot of interesting things going on there, mostly showing how Vriska actually feels towards her friends. Right from the start, with 'lousy goddamn stupid supportive friend', all the way up to her feeling remorse for killing Tavros, it's pretty obvious she does actually like them all (or most of them.... Eridan!), but hates the way they view her because of the things she had to do out of necessity. It's for this reason that I don't fully buy her "I wanted to create the strongest boss to challenge my abilities" load of crap. There's more here than she's letting on.
From her critique of Tavros's plan, and "AG: Nice deduction! Wrong, excruci8tingly linear, and laced with the sort of a8solutes morons like to throw around........" it's plain that she broadly understands the rules of Paradox Space with regards to alpha timelines and the punishments for deviating from them. The real reason she's creating Jack Noir is to save everyone on that damn rock because she knows nobody else can do it (sending people to sleep at critical moments) or will do it (general disinterest from more than half the trolls). But again, its not enough to prove her a hero, because people will think like Tavros, just see the spiderbitch being a spiderbitch, having to have all of the irons in all of the fires, as usual. And she'd never mention it anyway, because she doesn't show concern for other trolls, it's just how she's been raised.
But she can talk to John, because he doesn't have Alternian standards of behaviour: "AG: To 8e honest, I am nervous a8out this fight. 8ut I'm still going through with it, for a lot of reasons. To save my friends, or at least the ones who are still alive. Oh, and I guess to save reality itself from 8eing totally fucked up. There's that too." The whole universe is just an afterthought to saving her friends and finally getting them to see her as a good guy (which is, granted, an afterthought at that point to seeing John). But while she's being honest, notice she doesn't say anything about challenging her abilities for the sake of it? That's just a clever excuse to tell Tavros, that fits in with her established character traits. There's also her tendency to refer to herself and John as "heroes" where all the others mostly refer to themselves as "players".
I honestly think thats part of why Vriska was so sad in the afterlife, too. She knew that for her death to stick, she must've been judged a villain by the clock, and she'd been fighting to try and change that perception, and failed. It must've felt like the "villain" brand was inescapable at that point. It took her two sub-acts of Act 6 and a body horror incident to snap her out of that depression, and I hope she's now coming back to set the record straight once and for all.