I just wanted to put the question out there as to which degree tend to impress airlines looking at your CV?
Any degree that will give you captain or training captain experience on Airbus/Boeing/Bombardier/Embraer... product.
More seriously: I think this is a fair question. I would go in a field you enjoy. But I know some people think becoming first an engineer in the space/aircraft industry prior becoming a pilot is relevant. Who knows.
In Canada willing to work on the ramp to do very basic work (cleaning, loading aircraft...) may help you land your first job...