Your welcome RoyBoy
If your 100% sure of being in aviation through out your life then I guess the Aviation Degree would be certainly beneficial. However, my reason for taking the generic business degree is that if I have to apply elsewhere other then Nepal would be much beneficial. I plan to getting a masters from a proper University and might take a break from flying for couple of years. Even in your same company, I guess you will find people with a generic business degree at management level then the ones who have a aviaition management degree.
But either ways, a degree is really beneficial I would suggest. In any context it would help you. If your looking for a job in management, I would look up the job criteria which are posted online for those position, this should give you a basic idea about the requirements. Then you could plan accordingly.
Either ways pilot around the world are least educated and highly skilled workers. So good to be highly educated and highly skilled.