Originally posted by who?-kid
Well, Lucas can say whatever he wants. The fact remains (and this is a fact) that Lucas absolutely had no idea the first SW movie would become so popular. The story he had written, was nothing special, just some kind of fairy tale : young boy rescues princess from the dark sorcerer. It had a beginning, middle and a clean end.Don't get me wrong, I absolutely love Star Wars and The Empire strikes Back, but when he wrote down the story of Star Wars, he hadn't a clue about the real Anakin Skywalker. Vader was just an impressive bad guy with a cool helmet, and with some tricks upon his sleeve. Why should he concern himself with writing down all the powers and so of Vader ? There was never meant to be a second and third movie, so why bother ?
But when the years passed by (how poetic) and the popularity of Vader grew and grew, each time Vader appeared in a Star Wars novel or a Star Wars comic, he was - or at least seemed - more dangerous than before (I'm exaggerating, I know, but just to give you the idea). Exactly the same with Boba Fett by the way ! In the second and third movie, he was a not that impressive mercenary with only a few lines, and thanks to his popularity, he's become the most dangerous and feared bountyhunter ever, who ever battled Vader once and walked away alive.
I just don't by the "I planned everything"-theory Lucas came up with years later because it's not true.
Back to topic: Doom has more than enough weapons in his armour to completely destroy Vader. Vader can be hit just like you and me (happened a lot in the movies when he was fighting his son), he felt it, and I don't think it's a secret Doom will hit 20 times harder.
Actually, no, he did have a back story. He just didn't have a backstory to make three movies, that's why he had to go back and write them for the new trilogy. He always had the origin of Anakin in his mind, from the very beginning. He also always had a higher power level for Anakin/Vader in his mind, and he STILL hasn't shown it, even in the new movies. Anakin is not depicted at near his capability, and never will be evidently. Lucas pays more attention to his discipline than raw power.
Also, Lucas always had in mind to make the original trilogy, he just wasn't sure if the first one would be very successful. He didn't come up with Empire and Return after Star Wars was successful. You don't have to buy the theory, it's not a theory. It's a fact and has been for years. I've known this for twenty years, as have many. As for Fett, that's entirely different as Lucas didn't write his story. He was never an important character. Novelists wrote his story. Lucas wrote the story of Anakin Skywalker from the beginning, novelists cannot touch that without his permission.
Doom does not have enough weapons because Vader would not likely let him get close. If Doom cannot fight with a lightsaber he isn't going to get in a hand-to-hand confrontation with him. He was hit fighting his son because it was a sword-fight. Vader can deflect any blast Doom sends against him.