I would suggest against getting a degree in aviation. Like previously said, it is worthless outside of the industry. On the other hand, there are many relevant degrees you can get that will possibly help your career and give you a back up plan.
If you're stuck on aviation as a degree, at very least make it an Aviation Management degree. This will make getting an MBA much easier if you ever decide to. Further, it will help if you ever consider going into a managerial role.
In the end, just major in something you really think you'd enjoy other than aviation. MHO.