What I can do with my S3 that my iPhone couldn't do is have my S3 on WiFi with no apps running and know for sure that even with no usage that my S3 will drop about 25% with no usage within about 2 hours.
My iPhone definitely couldn't do this...lmaooo!!!
Sean...when are you going to listen to me & go get a new battery. I truly believe you've got a bad battery my friend.