I'm going to exploit my boyfriend's natural weaknesses against him when we fight.
What type of weaknesses does your boyfriend have when he is in a fight?
He hates being unable to defend himself when I use my debating skills on him.
It is understandable to want to win but you should be careful to not want to win to make your boyfriend feel bad. It would be good if both of you learn to resolve things without one person winning.
There's nothing wrong with me winning a fight with my intellect.
Part of being able to argue well intellectually means treating the other person with a modicum of respect. Your boyfriend is your partner and exploiting his weaknesses will hurt him and perhaps permanently harm your relationship. I doubt you would want him to do this to you.