Originally posted by Darth_Glentract
So Yoda is stronger then DN Luke? Good job proving that load of bull. The quote could easily have mean that Yoda was the strongest foe the Darkside had ever know not by his own strength, but by the strength of the hundreds of students he trained. You don't have to powerful to be someone's strongest foe.
Good job ignoring that's before Luke is even born. And yes, Yoda isn't the strongest enemy the darkside has ever had in a direct reference to combat with the dark side, when the term is something along the lines of "The fiercest, strongest, most implacable foe.'