Out of all the uber brands, which one takes the cake? AND why?

My vote goes to /////AMG, because of the rapid fire throttle response you feel when you mash down on the accelerator. AMG cars literally liquify the enviorment they live in once they're in motion. It's an unreal experience and should be experienced at least ONCE in this lietime. Besides that, they do the nicest modifications to the cars bodywork. All of this is o' so lovely.

edit: it should be said that while I've driven both S and AMG cars, I have not yet had the oppurtunity to drive an M. I will do so in the weeks coming.