I use KB/M for all choppers, and i use a hardwired xbox controller for all jets(windows detects it, it's literally PnP). I also use the xbox headset for ventrillo, which is detected right in ventrillo which is nice. The controller is better for me because i get 2 joy sticks to manipulate the controls.
Like BigBird said, slower speeds are best for pulling those High-G turns, they dont like speed when turning, think about a car taking a sharp turn, speed pushes you to the outside.
Is there a way to get the mouse to control the plane with out having to drag and pick it up? it's truly the most annoying thing in the world and i never did figure out a way around it.