Sora's echoed back a lot of enemies at this point, but certainly never anyone who he'd consider a mortal enemy. He figures that he just doesn't have that kind of anger in him. (Or at least the Sora he was didn't - Roxas and Skyler were different stories.) Link seems like he's gone down his path, but split in another direction.

"Is he the one? The one who's putting everyone in your world in danger?"