while the SW of the above 2 extreme example may not be too different (it maybe very different !), the feel is definitely different !
in the first case, it is not a stable racket. any ball hitting close to the tip will let your wrist, elbow know very clearly ! The 2nd example is a polarized one, and could handle ball hit up in the head feel more comfy and stable.
But if u put it too extreme, like all the mass at the butt and at 12 'oclock (and achieve your balance), it would not be too easy or natural to swing around.