Up to a certain point (heavies/supers and wake turb separation), it doesn't really matter what the aircraft is; it still takes the same amount of ATC human resources. That being said, I'd suspect the airports where the feds decide to cut flights will more heavily impact the Big 3 and WN to a lesser extent (suspect they take it on the nose in DEN, but probably get spared some pain elsewhere due to the point-to-point model). I imagine it's kind of a wash if you're, say F9 or NK on the outside of the large hubs looking in. If you're G4 or Breeze it's probably just another Friday. At least for now.

May we live in interesting times.