I like the Freebooter, it simply plays better with the rest of my cube.
This is the key part right here. I believe the entirety of everyone's disagreement centers around what this particular slot in cube is for (which is individual specific). If you are looking at this card as a slot for human/anthem/tempo/pants support, it's not even a close comparison. Fiend looks a whole lot worse in this slot. Same with maggot. If you are instead looking at this slot as a general utility dork for black decks, Fiend IMO looks much better because it's disruption is so much more useful. That's the crux of the argument in my mind. Neither side is wrong.