Anakin Skywalker, the chosen one, had the potential to be the most powerful Jedi in existence, until his untimely demise at the hands of his former master, Obi-Wan Kenobi during Order 66, who chopped him up on Mustafar and left him to burn, only to become a fraction of the man we was destined to become. George Lucas has claimed that Vader only became 80% as powerful as the Emperor after he got burned up, and for this reason, never was could properly beat him one on one. Now you might be wondering how Vader killed the Emperor then in ROTJ. The answer is because Palpatine’s focus and hatred on killing Luke completely tunneled him from seeing Vader’s betrayal, and once Vader grabbed him, his anger exemplified as he blacked out in a fit of Sith rage, shooting lightning all over the place as he threw palpatine over the railing. Now, had Anakin not lost to obi-wan Kenobi, how powerful would he have become? He would have been the most powerful being in the galaxy, forever.
Star Killer, on the other hand, was the epitome of Luke Skywalker’s full potential had he been the one to learn from Vader. His ability to stop a star destroyer, his ability to send a shockwave outwards from his body and incinerate all those around him, were feats of the force that burnt Anakin could never do. In the game, he fights Vader and wins, it wasn’t an easy battle, but it definitely ended in his favour. So we know what would have happened had he found Vader, but this Video is about Anakin at his full potential fighting Star Killer. Had Anakin not lost to obi-wan, had he not burned up, he would have reached his true potential.
Anakin at his true potential, would have killed Star Killer, no doubt in my mind. However, we have never seen Anakin at his true potential, so we must then focus on Anakin just before he lost to obi-wan, fighting Star Killer. Had these two been pitted against one another on Mustafar or elsewhere, it would have been a terribly close battle. Now in the comics and the books, legends and canon, Anakin’s force abilities were really shown, however in the movies, we didn’t get to see them in all their glory. In legends material, the first time Anakin killed someone infrtont of obi-wan, was by combusting them into flames. This kind of power is next to that of a fully powered mage.
Anakin in revenge of the Sith against Star Killer would lose. Star Killer was just too powerful in the force. Now if it were a battle of lightsaber combat, then Anakin might have the upper hand, but I’d again, have to give it to star killer, he was too ferocious, too fast, and too powerful for Anakin at this point in his life. He had just turned to the dark side, and he didn’t get enough time to really hone his new fighting skills and powers. And yes, I say new fighting skills because Hayden Christensen in the bonus DVD of episode 3, even says that Anakin’s entire fighting style is different once he turns to the dark side. I hope one day we’ll get more elaboration on that, but until then, that’s all we have to go off of.
So, Vader vs Starkiller, Starkiller wins. Anakin full potential vs starkiller, Anakin wins. Anakin revenge fo the Sith vs Starkiller, Starkiller wins. However, and this is a big however, Anakin in revenge of the Sith vs starkiller but protecting padme is a completely different story. See, when Anakin has emotions mixed into his fighting, he’s a very different fighter. He doesn’t use the light side or the dark side, rather, he just uses the force. In the novel against Dooku, as Dooku taunted him, he started hurling tables at the Count, throwing things and beams from across the room with the force. He was relentless and very powerful. The amount of energy that Anakin expels when something emotional is fuelling him or something is at stake yields a completely different person and force user.
Anakin Skywalker would win in certain specific scenarios, but even then, it would be tough, but I do believe he would win in the end, just maybe, not all in one piece depending on the situation.