HTC One S/X or Galaxy S3 or Xperia S?

Hi All,

This is the exact site I was looking for when I started search for a smart phone with the BEST camera. Please suggest me. My requirements are as below in decreasing order of priority-

1) Best Overall Camera performance (image quality, video, versatility)

2) Better screen

3) Good battery life...(because a dedicated digital camera replacement smart phone, shouldn't drain within a day of outdoor shooting)

Excluding Iphones which one among HTC One S or X, Galaxy S3, Xperia S (& Lumia 820.. still awaiting its launch in India)..has the best camera?

Thank you...

MKSNG