With jets use a joystick, your fucked with m/k. Use the third person view when flying around, because it has a larger FOV. Try to stay out of the battlefield and keep looking at it with freelook to spot enemy planes and choppers, then move in for the kill. Always spot the moment you see an airplane. Don't shoot until you are behind and close to them. Use missiles after your have taken down their health with the machine gun. Slow down while manoeuvring when someone is behind you so there is a chance they will overshoot, or slow down when trying to take down helicopters, the game is much more forgiving in that respect then bf2. Try to attack with the sun behind your back. And have lots and lots of fucking patience, you will have lots of rounds without any kills in a jet.
Helicopters are pretty fucked as far as I can see.