How about I argue with my best friend a lot?
Why would you want to cause controversy?
I foresee that the argument is going to be extremely fun.
That is not a good thing to do. You shouldn't argue all the time with your best friend. Your friend might get upset and it could cause even more problems.
I'll show her, I bet I can win in arguments.
But isn't she your best friend, don't you want to have good relationships with her? How about asking her first if she wants to try to debate with you. Maybe she'll like it that way and you can have fun.