I could post about the numbskull selling her unlicensed SW fan fiction novel on Amazon.com, but about a dozen people already have. The only thing I could add is the response from Lucasfilm's Sue Rostoni on starwars.com's message board:
Don't buy it -- it will only encourage this type of thing. I'm really surprised that the publisher took the risk in publishing this, and that amazon.com agreed to sell it. Obviously, they're going to be contacted by our legal department....
I've looked at a few of the more prominent baddies in my previous post and why they were, well, bad. I did forget to mention Tarkin, a guy whose ambition allowed him to blow up a billion people just to make a point. His arrogance and faith in technology (which in turn was supposed to increase his power…who's going to mess with the chap in charge of the galaxy's most feared weapon?) did him in.
I'll also mention that I don’t consider random Imperial officers, clonetroopers/stormies, or battle droids to be evil. Droids are just programming with limbs. Cloned soldiers are, at least in these movies, droids with a little more independent thought and the occasional need to go wee wee. Even though Commander Cody was Obi-Wan's pal one minute and was trying to shoot him down literally the next, he was "programmed" that way. Many, if not most, Imps are just guys working for the wrong side. They're like the Wehrmacht of the SW universe.
Vader was unquestionably evil. One could argue that some of his actions were worse than those of many of the other baddies I've mentioned. Yet, at the end, he's forgiven. He's forgiven because he's redeemed himself and he did that only by changing his heart. Once I saw a bumper sticker that said those who wait for the 11th hour to repent often die at 10:59 and that pretty much describes the rest of the villains. They either never had the chance to change or they just didn't want to. Vader got that chance and when he finally figured out he not only could choose differently, he had the freedom to act upon that choice, then he was at last able to fulfill the prophecy. Now, I've figured since ROTS that Vader wasn't a Sith the way Palpie or Maul or even Dooku were. There was that "ounce of good in him" still and the possible reasons why are worth an entire meta by itself. Yet, it wouldn't have made any difference had he not made the conscious decision to change.
Anakin was a very lucky guy in two respects; he had Luke and he had the opportunity to be redeemed. I suppose he remains the Force's favorite son throughout the saga because after all, he was created to carry out a specific mission. Fortunately, he came through.