The answer has already been voted on and Madonna will always win this. Not sure why yall keep making threads asking the same question when the answer will always be Madonna.
The most controversial part of Britney's career was the start of it, when there was controversy over whether her image for BBOMT was far too sexual for a teen pop star of her age. That pales in comparison to the controversies Madonna stoked in the late 80's and early 90's.
