I was reading over the lore of the sith emperor and read how he had to do a whole ritual to absorb the strength of sith lords to make himself the all powerful sith emperor we know of in the game, But isn't this just the same thing Darth Nihilus did but without the whole ritual?
Couldn't Nihilus had just cruised around space in the ravager eating Jedi faces and become the most powerful thing to exist? making the skywalkers look like ants before him?
EDIT: omg totally derped the title...
Pretty much. Karpyshyn completely ignored the lore around Nihilus, so it's hard to compare the powers of those two. Nihilus gained his power by accident when he survived Malachor V, though.
He was incredibly powerful, but that power was in its own way a weakness, because the scale of his attention (to planets full of beings) allowed a small group to escape his notice enough to sneak attack him. If the Exile and her companions hadn't stopped him, he would have gone on to drain the life out of the galaxy in the end.