I have tried to use an Xbox Controller and a joystick for this game. I can fly effeciently with GA, and general acrobatics seem much higher while having full control. But my aiming SUCKS!!!! That is my problem. I choose to use the mouse as I am too lazy to learn how to be as good with the joystick as I am with the mouse. That being said, I set my flaps, and roll controls to a key so that I can control them so that when the mouse flying gets deet da deet I can correct it before it happens.
I will say this though, 1v1 I would LOVE to take on the best of the best! If we are using same aircraft I am confident that it would be a great time of shooting down and getting shot down and both of us learning.
Also for mouse users. Make sure to get into the advanced mouse controls and set the anti low ground crap OFF!!!! That and manual flaps. It will also help to mess with the camera angles a little and the return to level timer as those can all help a TON!
To the joystick guys that have taken the time to use them and get good with them. Kudos to you. For the noobs that are complaining.... To be frank, learn how to fly. It WILL take you longer to get used to aiming, but you definately do have a 1up with the pure control of the aircraft, so give it some time if you enjoy using your joystick. In the long run, even if you switch after 100/200 battles to the mouse you will be better off with the knowlede you gain using the joystick.