I think Ferraro's transformation from productive goal scorer to PKing checking forward is pretty impressive. I don't know Callahan's past as well because the O,W, and Q are covered much more extensively in Ontario than other leagues, obviously. But Ferraro's ability to shift into a defensive force who uses his smarts and speed to be effective (and score a lot of fast break type goals) is pretty impressive to me.
I think Callahan also offers agitation, grit, physicality, etc. and can obviously produce as we saw recently in the AHL. But I don't know if Babcock, Holland, etc. value the agitating and pesky side of the game as much as the fans on here do. Ferraro's chirps are pretty well documented in the series of videos on vimeo from the Griffs Calder Cup run, so it isn't like he is a saint in comparison, but he has shown a good amount of versatility and his speed and right handed shot would both add up to give him the edge, at least in my eyes.
If Ferraro's game hadn't plateau'd/ slightly dipped last year, and instead plateau'd/ slightly climbed from his previous season (I'm talking really marginally small difference in his overall season, because I think his "disappointing" season is kind of overstated) there would be very little discussion. Callahan all of a sudden looked like he could be a 4th liner in the NHL where as Ferraro went from likely 4th line/ bottom 6/ PK lifer to 4th liner/ fringe NHLer in the space of 1 season.
