If I remember correctly from one of the other Bandon threads, doesn't the databank say that Bandon is powerful? More than can be said for ESB Luke. While his power increased at an incredible rate, he is still mediocore at best, and maybe not even that. So yes, Bandon wins for sure, but not to easily, Luke likely puts up a decent fight I'd say.
Well, Luke certainly beat Vader in ROTJ.
If he was holding back, then this shows weakness on his part.
Vader was supposed to be a Sith, and once he found that he could not defend himself, he should have tried to end the fight.
Perhaps he did try. If he did not, then he is mentally flawed, and still loses.
I am not concerned with who is the best technically - I am concerned about what happened in practice.