Ahahaha, I don't know if it's brilliance so much as banter. Which admittedly works with those two. The hilarious thing about them is that they both desperately want to be badass and sometimes manage to pull it off (Spike does so a little more often than Frank), but often they just come off as sort of adorable. Very punk, that. (I had so much fun with this. I have a not-so-secret love of weird random crossovers.)