Vibration or motion sensor?

As you may have heard, the PS3’s redesigned controller (aka ‘Dual Shake’) does not have any sort of vibration feature. I know that there have been some legal issues around the vibration feature, but I did not think they would totally drop the feature. Looks like the lawyers scared them off.
So my question to you, avid gamer: Which would you rather see on your PS3 controller, vibration or motion sensing support? Do you want to shake the controller of have the controller shake you?

BTW: You do know where Sony borrowed the controller idea from don’t you?