Well theres both ends of the spectrum at a professional level, so I hardly think there is a correct answer.
Yeah, Maddux won games with his glove, thats all well and good. But who wants to see what KRod looks like when he drastically changes things to land better. Gibson? Pedro? You need to do whats natural. If your not a horribly violent lander, then make some adjustments so that you can field your position. But if you fall off hard, spin around, ect... changing things means you risk your stuff and control.
I used to be a violent fall off guy. I've worked on it a bit, now I'm a little better, but I still dont land in a perfect position.