Brett,
The Navy wants you to be interested in the Navy, not necessarily aviation. Your job is to make yourself as marketable as possible to be competitive for the position you desire. If you can join NROTC, do so (you might be able to even pick up a partial scholarship). In that case, your number 1 priority is a high GPA, preferably in a technical major. Otherwise, apply to OCS upon graduation, and get into great shape!. I believe that you are still brought into OCS already knowing your pipeline (i.e., aviation, surface warfare, etc.)
I was NROTC myself, happy to help with any questions about that.