Err, I was talking about EXPERIENCE, not a breakdown of technical details.
You can save your shots all you want and then hit the enemy once, while two of his cronies blast you to hell. Woo 100% accuracy. It means absolutely nothing.
Also, the most likely thing is that you can probably be only really good at one of them, because of the sheer amount of training you need to favor a style.
I started out with the keyboard (it's all I knew), and was semi-good with it, but that was the maximum I could output in terms of skill. Since I knew I sucked, I bought a joystick. When I started, I was even worse at that obviously. It's like trying to learn violin after all you've been playing is the piano.
Eventually though, time after time, I befriended the joystick and surpassed any keyboard skills I might've had by miles.