Flash vs Webplayer - Performance Investigation

Regarding the export of Flash (Stage3D) - could somebody figure out what the advantage of Flash would be in comparison to webplayer target (performancewise)?

It seems to me that the webplayer wins performancewise. But my assets and scripts might distort this so I am not sure. I will update my experiences as I go along.

I would appreciate any opinion and experience regrading this. Thx