No diff as Monty says, and as of right now you should only be seeing "Ads by Google" in the pretty new font and format. https://www.google.com/adsense/stat...ceid=asos&subid=ww-ww-et-HC_entry&medium=link
I have an increase in ctr and ecpm. I just realised that they might have been because of the new ads format. CHeers.