Before we get into this, I'd like to state a few things:
#1) I do not wish to see United Airlines go out of business.
#2) I understand this topic will result in nothing more than pure speculation.
#3) I understand that the possibility of UAL going under is not in any way a done deal and might not happen at all.
Now that all that is cleared up, with the CEO saying that the airline is in trouble, I would like to hear everyone's opinions on which airlines would pick up the routes, hubs, equipment, employees and other business aspects that a hypothetically defunct United Airlines would leave behind.
Example: NW will pick up some of the Airbus narrowbodies, AA will expand greatly at Chicago hub, etc, etc...