I joined the Marine Corps to fly in combat. Whether it was fighters, EA-6B, or helos, every aircraft has a combat role and ordnance onboard (even the Herc, which you won't get unless you want it, shoots stuff).
With the USMC, you won't be shuttling generals around or VERTREPing the fleet. You are going to have a combat role. If that doesn't excite you then the Marines aren't for you.
After you make that decision and provided you are given the opportunity, all you can do is do your best to put yourself in a position where you can select TACAIR (graduate OCS, TBS, and complete primary with jet grades). After that there is a certain amount of luck involved. Regardless, there should be no regret at that point - you've done all you could. Your first squadron and aircraft will be a fantastic experience unlike anything you will do in the rest of your career/life. Enjoy it no matter what type a/c you are flying.