I am pretty new here, but long of tooth when compared to some of the posters. Back when I started the game there was still one F-8 squadron left, a good number of F-4 squadrons and rapid growth in the F-14 arena. Over in the USAF they were growing their F-15 force, flying F-111's and scratching their heads over the F-16. Sure, I ended up in helos and loved it, but fast forward to today and all I can say is this...there are no more fighter pilots in the true sense of the word. The last air-to-air kill by a US pilot was 23 years ago. Read that again...23 years. Pick any service, Navy Khaki, Marine Corps Green, or USAF Blue and you won't be a fighter pilot, certainly not one with a career.
So what does that leave you? I have always thought attack work would be super great and I will always regret never getting a shot at flying an A-6. Modern jet airframes are just slick carriers for stand-off ordnance with more and more attack work being done from afar or more accurately, by UAV. Helicopters are just fun. I would gladly run along the surface at 120 knots than count clouds in a sealed sarcophagus going Mach anything. Trust me, it feels faster. But then again, I am biased. Sure, you could go transports or even a cool version of transport flying like the AC-130...that is a nice lead in to an airline career and you will likely get lots of time in the cockpit. Bombers? I know nothing of bombers beyond 12 O' Clock High.
To the question of USAF vs USN...the Air Force is quickly becoming a tech agency. Flying is a legacy skill as far as the Air Force is concerned and they are looking to empty cockpits as quickly as possible with the exception of their transport operations. The Navy, on the other hand, is really suffering for a true maritime mission. I would rate their stick-and-rudder flight skills above those of the USAF and I think the smaller world of a squadron is far superior to the generic world of the USAF wing. The letter above notes that the USAF "is homogeneous and macro." That is code for same and dull. Still, the Navy needs to better define their aviation future. If asked by a young person today, I would advise them to look at two things - flying and experiences. If they want to fly, join the Army as a warrant officer and just fly without the hassles associated with being a commissioned officer. If they want to lead and have experience, join the Navy as you will go places and learn skills so far beyond the pale of simple flying it could be life-changing. If you want a job with the airlines, join the USAF. They have big bases with big runways and big airplanes. They move more, by air, than all the other services combined and do it with style. Still, I can't shake the feeling that manned military fixed-wing aviation is quickly becoming a thing of the past - which brings me to my final point...if you want to be a fighter pilot - stay in your mom's basement and play video games. You'll get more kills that way.