Hmm all this talk of Ichigo's "inner Hallow" and a possible angel did it ever occure to anyone that should the two go at it if the angel WINS Ichigo's "inner Hallow" get absorbed by the angel instead?
They're all just manifestations of a person's power, anyway; whichever powerset was dominant would be the way it'd manifest. In other words, it's just Zangetsu all the way down.